BiVO₄-Dotted WO₃ Photoanode with an Inverse Opal Underlayer for Photoelectrochemical Water Splitting

Yuhei Taga, Zhenhua Pan, Kenji Katayama, Woon Yong Sohn

ACS Applied Energy Materials   5 ( 5 )   5750 - 5755   2022.4

Microscopic Interfacial Charge Transfer at Perovskite/Hole Transport Layer Interfaces Clarified Using Pattern-Illumination Time-Resolved Phase Microscopy

Tatsuya Chugenji, Zhenhua Pan, Kenji Katayama

The Journal of Physical Chemistry C   126 ( 17 )   7548 - 7555   2022.4

Distinction and Separation of Different Types of Charge Carriers from the Time-Resolved Local Charge Carrier Mapping for Photocatalytic Materials

Kei Kawaguchi, Tatsuya Chugenji, Sayuri Okunaka, Hiromasa Tokudome, Kenji Katayama

The Journal of Physical Chemistry C   126 ( 15 )   6646 - 6652   2022.4

Hematite photoanodes prepared by particle transfer for photoelectrochemical water splitting Reviewed

Zhenhua Pan, Rito Yanagi, Tomohiro Higashi, Yuriy Pihosh, Shu Hu, Kenji Katayama

Sustainable Energy & Fuels   2022.3

Overall photosynthesis of H2O2 by an inorganic semiconductor Reviewed

Tian Liu, Zhenhua Pan, Junie Jhon, M. Vequizo, Kosaku Kato, Binbin Wu, Akira Yamakata, Kenji Katayama, Baoliang Chen, Chiheng Chu, Kazunari Domen

Nature Communications   13 ( 1 )   1034   2022.2

Investigation of the Photo-Excited Charge Carrier Dynamics in Bismuth Vanadate (BiVO4) Photoanode by the Heterodyne Transient Grating Technique Reviewed

A. Minato, K. Katayama, W. Y. Sohn

Journal of Photochemistry and Photobiology A   424   113659   2022.2

Local charge carrier dynamics of a particulate Ga-doped La5Ti2Cu0.9Ag0.1O7S5 photocatalyst and the impact of Rh cocatalysts

Tatsuya Chugenji, Zhenhua Pan, Vikas Nandal, Kazuhiko Seki, Kazunari Domen, Kenji Katayama

Physical Chemistry Chemical Physics   2022

Photocontrollable Crystallization at the Topological Defect of a Liquid Crystalline Droplet Reviewed

Y. Sakai, H. Kusaki, K. Katayama

ACS Omega   6 ( 50 )   35050 - 35056   2021.12

Charge carrier mapping for Z-scheme photocatalytic water-splitting sheet via categorization of microscopic time-resolved image sequences

Makoto Ebihara, Takeshi Ikeda, Sayuri Okunaka, Hiromasa Tokudome, Kazunari Domen, Kenji Katayama

Nature Communications   12 ( 1 )   2021.12

Defocus-Induced Phase Contrast Enhancement in Pattern Illumination Time-resolved Phase microscopy Reviewed

K. Katayama, T. Chugenji, K. Kawaguchi

AIP Advances   11   115215   2021.11

Controlled Formation of Topological Defects of Liquid Crystals in Micro-Wells Reviewed

H. Sakanoue, S. Yamashita, T. Murakami, H. Suzuki, K. Katayama

Liquid Crystals   2021.11

Charge Carrier Trapping during Diffusion Generally Observed for Particulate Photocatalytic Substrates Reviewed

K. Katayama, T. Chugenji, K. Kawaguchi

Energies   14 ( 21 )   7011   2021.10

Analysis of Molecular Disordering Processes in the Phase Transition of Liquid Crystals Observed by Patterned-Illumination Time-Resolved Phase Microscopy

Nozomi Sato, Kenji Katayama

Materials   2021.9

Charge Carrier Inhomogeneity of MAPbI3 Clarified by the Clustering of the Time-Resolved Microscopic Image Sequence

Tatsuya Chugenji, Makoto Ebihara, Kenji Katayama

ACS Applied Energy Materials   4 ( 7 )   6430 - 6435   2021.7

Inference of molecular orientation/ordering change nearby topological defects by the neural network function from the microscopic color information Reviewed

H. Sakanoue, Y. Hayashi, K. Katayama

Scientific Reports   11   9108   2021.4

Enhanced Photoelectrochemical Water Splitting Efficiency of Hematite (α-Fe2O3)-Based Photoelectrode by the Introduction of Maghemite (γ-Fe2O3) Nanoparticles Reviewed

T. Tokubuchi, R. I. Arbi, P. Zhenhua, K. Katayama, A. Turak, W. Y. Sohn

Journal of Photochemisty and Photobiology A   410   113179   2021.1

Multivariate curve resolution combined with estimation by cosine similarity mapping of analytical data

Yuya Nagai, Kenji Katayama

The Analyst   2021

Time-Resolved Spectroscopic Study of Photo-Excited Charge Carrier Dynamics in Hematite (-Fe2O3): Effect of Re-Growth Treatment Reviewed

Y. Taga, K. Katayama, W. Y. Sohn

Journal of Photochemistry and Photobiology A   408   113107   2020.12

Demonstration of rewritable hologram by using photo-induced optical nonlinearity in liquid crystals

Minako Miyagawa, Woon Yong Sohn, Kenji Katayama

Molecular Crystals and Liquid Crystals   2020.11

Anomalous charge carrier decay spotted by the clustering of time-resolved microscopic phase image sequence Reviewed

Makoto Ebihara, Kenji Katayama

Journal of Physical Chemistry C   124 ( 43 )   23551 - 23557   2020.10

Photo-excited charge carrier imaging by time-resolved pattern illumination phase microscopy Invited Reviewed

Kenji Katayama

Journal of Chemical Physics   153   054201   2020.8

Photo-controllable rotational motion of cholesteric liquid crystalline droplets in a dispersion system Reviewed

Y. Sakai, W. Y. Sohn, K. Katayama

RSC Advances   10   21191 - 21197   2020.6

Cooperative Effects of Surface and Interface Treatments in Hematite (a-Fe2O3) Photo-Anode on Its Photo-Electrochemical Performanc Reviewed

M. Inaba, K. Katayama, W. Y. Sohn

Sustainable Energy & Fuels   2020.1

An Initial Estimation Method Using Cosine Similarity for Multivariate Curve Resolution: Application to NMR Spectra of Chemical Mixtures. Reviewed

Nagai, Yuya, Woon Yong Sohn, Kenji Katayama

Analyst   144 ( 20 )   5986 - 5995   2019.10

Optical Motion Control of Liquid Crystalline Droplets by Host–Guest Molecular Interaction Reviewed

Sakai, Yota, Woon Yong Sohn, Kenji Katayama

Soft Matter   15 ( 36 )   7159 - 7156   2019.9

Molecular Orientation Change Nearby Topological Defects Observed by Photo-Induced Polarization/Phase Microscopy Reviewed

Sakanoue, Haruka, Woon Yong Sohn, Kenji Katayama

ACS Omega   4 ( 9 )   13936 - 13942   2019.8

Lifetime Mapping of Photo-Excited Charge Carriers by the Transient Grating Imaging Technique for Nano-Particulate Semiconductor Films Reviewed

Ebihara, Makoto, Woon Yong Sohn, Kenji Katayama

Review of Scientific Instruments   90 ( 7 )   073905   2019.7

Origin of Optical Nonlinearity of Photo-Responsive Liquid Crystals Revealed by Transient Grating Imaging Reviewed

Katayama, Kenji, Daiki Kato, Kin-Ichiro Nagasaka, Minako Miyagawa, Woon Yong Sohn, Kuang-Wu Lee

Scientific Reports   9 ( 1 )   5754   2019.4

Uncovering Photo-Excited Charge Carrier Dynamics in Hematite (α-Fe2O3) Hidden in the Nanosecond Range by the Heterodyne Transient Grating Technique Combined with the Randomly Interleaved Pulse-Train Method. Reviewed

Sohn, Woon Yong, Mika Inaba, Tsuyoshi Tokubuchi, James E. Thorne, Dunwei Wang, Kenji Katayama

The Journal of Physical Chemistry C   123 ( 11 )   6693 - 6700   2019.3

Improving Photovoltaic Performance of ZnO Nanowires Based Colloidal Quantum Dot Solar Cells via SnO2 Passivation Strategy Reviewed

Ozu, Shuhei, Yaohong Zhang, Hironobu Yasuda, Yukiko Kitabatake, Taro Toyoda, Masayuki Hirata, Kenji Yoshino

Frontiers in Energy Research   7   2019

Effect of the conduction band offset on interfacial recombination behavior of the planar perovskite solar cells Reviewed

Ding, Chao, Yaohong Zhang, Feng Liu, Yukiko Kitabatake, Shuzi Hayase, Taro Toyoda, Kenji Yoshino, Takashi Minemoto, Kenji Katayama, Qing Shen

Nano Energy   53   17 - 26   2018.11

Optically induced motion of liquid crystalline droplets Reviewed

Y. Dogishi, Y. Sakai, W. Y. Sohn, K. Katayama

Soft Matter   2018.9

Aggregation-induced expansion of poly-(N-isopropyl acrylamide) solutions observed directly by the transient grating imaging technique Reviewed

D. Kato, W, Y. Sohn, K. Katayama

ACS Omega   3 ( 8 )   8484 - 8490   2018.7

Comparative Study of Photo-Excited Charge Carrier Dynamics of Atomic Layer Deposited and Solution-Derived Hematite Films: Dependence of Charge Carrier Kinetics on Surface Orientations Reviewed

M. Inaba, J. E. Thorne, D. Wang, W. Y. Sohn, K. Katayama

Journal of Photochemistry and Photobiology A: Chemistry   364   645 - 649   2018.7

Two-Photon Actuation of Crosslinked Liquid-Crystalline Polymers Utilizing Energy Transfer System Reviewed

Sasaki, Shota, Toru Ube, Kenji Katayama, Masayasu Muramatsu, Hiroshi Miyasaka, Tomiki Ikeda

Molecular Crystals and Liquid Crystals   662 ( 1 )   53 - 60   2018.6

Surface-dominant and bulk-dominant processes in the phase recovery of liquid crystals Reviewed

K-I. Nagasaka, W. Y. Sohn, K. Katayama

Molecular Crystals and Liquid Crystals   663   82 - 89   2018.4

Photoexcited Charge Carrier Dynamics of Interconnected TiO2 Nanoparticles: Evidence of Enhancement of Charge Separation at Anatase-Rutile Particle Interfaces Reviewed

Shingai, Daiki, Ide, Yusuke, Sohn, Woon Yong, Katayama, Kenji

Physical Chemistry Chemical Physics   20   3484 - 3489   2018.1

Response of liquid crystals in the pre-phase transitional state Reviewed

K. Katayama, D. Kato, K-I. Nagasaka, M. Miyagawa, W. Y. Sohn

Molecular Crystals and Liquid Crystals   ( 657 )   89 - 94   2018.1

Facile and Quick Preparation of Colloid Crystals with Micron-sized Particles by Intentionally Induced Convex Flow Reviewed

Yoshinaga, Naoya, Nakajima, Naoto, Sohn, Woon Yong, Katayama, Kenji

Chemistry Letters   47   1123 - 1126   2018

Formation of photo-responsive liquid crystalline emulsion by using microfluidics device Reviewed

Yoshiharu Dogishi, Shun Endo, Woon Yong Sohn, Kenji Katayama

Entropy   19 ( 12 )   669   2017.12

Dependences of the Optical Absorption, Ground State Energy Level, and Interfacial Electron Transfer Dynamics on the Size of CdSe Quantum Dots Adsorbed on the (001), (110), and (111) Surfaces of Single Crystal Rutile TiO2 Reviewed

Taro Toyoda, Qing Shen, Keita Kamiyama, Kenji Katayama, Shuzi Hayase

JOURNAL OF PHYSICAL CHEMISTRY C   121 ( 45 )   25390 - 25401   2017.11

Slow hot carrier cooling in cesium lead iodide perovskites Reviewed

Qing Shen, Teresa S. Ripolles, Jacky Even, Yuhei Ogomi, Koji Nishinaka, Takuya Izuishi, Naoki Nakazawa, Yaohong Zhang, Chao Ding, Feng Liu, Taro Toyoda, Kenji Yoshino, Takashi Minemoto, Kenji Katayama, Shuzi Hayase

APPLIED PHYSICS LETTERS   111 ( 15 )   153903   2017.10

Anomalous enhancement by alkylamine of the dye-sensitized solar cells using TEMPO redox Reviewed

Taisei Nishimura, Woon Yong Sohn, Qing Shen, Shota Kuwahara, Kenji Katayama

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   346   281 - 286   2017.9

Optimization of Experimental Parameters for the Performance of Solid-state Dye-sensitized Solar Cells Reviewed

Miki Yamaguchi, Taisei Nisimura, Woon Yong Sohn, Qing Shen, Shota Kuwahara, Kenji Katayama

ANALYTICAL SCIENCES   33 ( 9 )   1041 - 1046   2017.9

Investigation of Photoexcited Carrier Dynamics in Hematite and the Effect of Surface Modifications by an Advanced Transient Grating Technique Reviewed

Woon Yong Sohn, Shota Kuwahara, James E. Thorne, Dunwei Wang, Kenji Katayama

ACS Omega   2 ( 3 )   1031 - 1035   2017.3

Direct measurement of the propagation of the phase-transition region of liquid crystals Reviewed

Takahiro Sato, Kenji Katayama

SCIENTIFIC REPORTS   7   44801   2017.3

Specific interaction between dyes and ions in dye -sensitized solar cells observed with temporal spectral shift of dyes Reviewed

R. Hosokawa, S. Kuwahara, K. Katayama

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   334   107 - 112   2017.2

Response of liquid crystals in the pre-phase transitional state Reviewed

K. Katayama, D. Kato, K-I. Nagasaka, M. Miyagawa, W. Y. Sohn

Molecular Crystals and Liquid Crystals   657   89 - 94   2017

マイクロ流体デバイスを用いた光応答性液晶エマルションの作製とその応答 Reviewed

遠藤舜, 土岸義治, 片山建二

ファインケミカル   46 ( 11 )   26 - 32   2017

Charge Carrier Kinetics in Hematite with an Amorphous NiFeOx Coating in Aqueous Solutions: Dependence on Bias Voltage Reviewed

Woon Yong Sohn, James E. Thorne, Yaohong Zhang, Shota Kuwahara, Qing Shen, Dunwei Wang, Kenji Katayama

Journal of Photochemistry and Photobiology A   353   344 - 348   2017

Photoexcited Charge Carrier Dynamics of Interconnected TiO2 Nanoparticles: Evidence of Enhancement of Charge Separation at Anatase-Rutile Particle Interfaces Reviewed

Shingai, Daiki, Ide, Yusuke, Sohn, Woon Yong, Katayama, Kenji

Physical Chemistry Chemical Physics   20   3484 - 3489   2017

Formation of photo-responsive liquid crystalline emulsion by using microfluidics device Reviewed

Yoshiharu Dogishi, Shun Endo, Woon Yong Sohn, Kenji Katayama

Entropy   19 ( 12 )   669   2017

Host-guest molecular interactions in the phase transition of liquid crystals Reviewed

Takahiro Sato, Shota Kuwahara, Kenji Katayama

MOLECULAR CRYSTALS AND LIQUID CRYSTALS   644 ( 1 )   44 - 51   2017

Air Stable PbSe Colloidal Quantum Dot Heterojunction Solar Cells: Ligand-Dependent Exciton Dissociation, Recombination, Photovoltaic Property, and Stability Reviewed

Yaohong Zhang, Chao Ding, Guohua Wu, Naoki Nakazawa, Jin Chang, Yuhei Ogomi, Taro Toyoda, Shuzi Hayase, Kenji Katayama, Qing Shen

JOURNAL OF PHYSICAL CHEMISTRY C   120 ( 50 )   28509 - 28518   2016.12

The effect of CdS on the charge separation and recombination dynamics in PbS/CdS double-layered quantum dot sensitized solar cells Reviewed

Koki Sato, Keita Ono, Takuya Izuishi, Shota Kuwahara, Kenji Katayama, Taro Toyoda, Shuzi Hayase, Qing Shen

CHEMICAL PHYSICS   478   159 - 163   2016.10

Distinction of electron pathways at titanium oxide/liquid interfaces in photocatalytic processes and co-catalyst effects Reviewed

Shota Kuwahara, Kenji Katayama

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   18 ( 36 )   25271 - 25276   2016.9

Photocatalytic organic syntheses using a glass-milled microchip Reviewed

A. Nakamura, K. Yoshida, S. Kuwahara, K. Katayama

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   322   35 - 40   2016.5

The Electronic Structure and Photoinduced Electron Transfer Rate of CdSe Quantum Dots on Single Crystal Rutile TiO2: Dependence on the Crystal Orientation of the Substrate Reviewed

Taro Toyoda, Witoon Yindeesuk, Keita Karniyama, Kenji Katayama, Hisayoshi Kobayashi, Shuzi Hayase, Qing Shen

JOURNAL OF PHYSICAL CHEMISTRY C   120 ( 4 )   2047 - 2057   2016.2

Specific Interaction between Dyes and Ions In Dye-sensitized Solar Cells Observed with Temporal Spectral Shift of Dyes Reviewed

J. Photochem. Photobio. A   2016

Distinction between reactive and non-reactive trap states in photocatalytic reactions revealed by transient grating technique Reviewed

Kenji Katayama, Shota Kuwahara

PHYSICAL CHEMISTRY OF INTERFACES AND NANOMATERIALS XV   9923   2016

Ligand-dependent exciton dynamics and photovoltaic properties of PbS quantum dot heterojunction solar cells Reviewed

Physical Chemistry Chemical Physics   2016

Direct evidence of the molecular interaction propagation in the phase transition of liquid crystals Reviewed

Kenji Katayama, Takahiro Sato, Shota Kuwahara

LIQUID CRYSTALS XX   9940   2016

Uncovering the charge transfer and recombination mechanism in ZnS-coated PbS quantum dot sensitized solar cells Reviewed

Jin Chang, Takuya Oshima, Sojiro Hachiya, Konki Sato, Taro Toyoda, Kenji Katayama, Shuzi Hayase, Qing Shen

SOLAR ENERGY   122   307 - 313   2015.12

Characterization of hot carrier cooling and multiple exciton generation dynamics in PbS Qps using an improved transient grating technique Reviewed

Qing Shen, Kenji Katayama, Taro Toyoda

JOURNAL OF ENERGY CHEMISTRY   24 ( 6 )   712 - 716   2015.11

Blocking Effect for Carrier Transfer to Triiodide in Alkyl-Functionalized Dyes in Dye-Sensitized Solar Cell Reviewed

Keita Omata, Shota Kuwahara, Ryo Hosokawa, Taisei Nishimura, Qing Shen, Taro Toyoda, Kenji Katayama

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   88 ( 9 )   1308 - 1313   2015.9

Evaluation of the Water-treatment Ability of Silica-doped Titanium Dioxide-coated Glass Plates Using a Cationic Coupling Reagent Based on a Flow Analytical System Reviewed

Tsuyoshi Sugita, Masanobu Mori, Akinori Mase, Shin-nosuke Noguchi, Toru Tokutome, Kengo Fujii, Chisato Hara, Kenji Katayama, Shinji Iwamoto, Hideyuki Itabashi

ANALYTICAL SCIENCES   31 ( 1 )   15 - 21   2015.1

The cause for the low efficiency of dye sensitized solar cells with a combination of ruthenium dyes and cobalt redox Reviewed

Keita Omata, Shota Kuwahara, Kenji Katayama, Shen Qing, Taro Toyoda, Kun-Mu Lee, Chun-Guey Wu

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   17 ( 15 )   10170 - 10175   2015

Structural dynamics in azobenzene liquid crystal polymer films studied by microscopic time-resolved technique Reviewed

Kenji Katayama, Shota Kuwahara, Tomiki Ikeda

LIQUID CRYSTALS XIX   9565   2015

Optical absorption, charge separation and recombination dynamics in Sn/Pb cocktail perovskite solar cells and their relationships to photovoltaic performances Reviewed

Qing Shen, Yuhei Ogomi, Jin Chang, Taro Toyoda, Kosei Fujiwara, Kenji Yoshino, Koki Sato, Kohei Yamazaki, Masaya Akimoto, Yuki Kuga, Kenji Katayama, Shuzi Hayase

JOURNAL OF MATERIALS CHEMISTRY A   3 ( 17 )   9308 - 9316   2015

Study on Photocatalytic Organic Reactions Using Photocatalytic Microreactors Reviewed

Kento Shimaoka, Shota Kuwahara, Makoto Yamashita, Kenji Katayama

ANALYTICAL SCIENCES   30 ( 5 )   619 - 621   2014.5

The Dynamics of Multiple Exciton Generation in Semiconductor Quantum Dots Reviewed

Shen, Q, Katayama, K, Toyoda, T

15   295   2014.4

Novel method of screening the oxidation and reduction abilities of photocatalytic materials Reviewed

K. Katayama, Y. Takeda, K. Shimaoka, K. Yoshida, R. Shimizu, T. Ishiwata, A. Nakamura, S. Kuwahara, A. Mase, T. Sugita, M. Mori

ANALYST   139 ( 8 )   1953 - 1959   2014

Molecular dynamics in azobenzene liquid crystal polymer films by transient grating technique Reviewed

Kenji Katayama, Tomomi Fujii, Shota Kuwahara, Takado Kiyohide, Tomiki Ikeda

LIQUID CRYSTALS XVIII   9182   2014

Charge transfer and recombination at the metal oxide/CH3NH3PbClI2/spiro-OMeTAD interfaces: uncovering the detailed mechanism behind high efficiency solar cells Reviewed

Qing Shen, Yuhei Ogomi, Jin Chang, Syota Tsukamoto, Kenji Kukihara, Takuya Oshima, Naoya Osada, Kenji Yoshino, Kenji Katayama, Taro Toyoda, Shuzi Hayase

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   16 ( 37 )   19984 - 19992   2014

Photoexcited carrier dynamics of double-layered CdS/CdSe quantum dot sensitized solar cells measured by heterodyne transient grating and transient absorption methods Reviewed

N. Osada, T. Oshima, S. Kuwahara, T. Toyoda, Q. Shen, K. Katayama

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   16 ( 12 )   5774 - 5778   2014

Role of lithium and co-existing cations in electrolyte to improve performance of dye-sensitized solar cells Reviewed

Soichiro Taya, Shota Kuwahara, Qing Shen, Taro Toyoda, Kenji Katayama

RSC ADVANCES   4 ( 41 )   21517 - 21520   2014

Depth-selective microscopic observation of a photomobile liquid crystal polymer under UV illumination Reviewed

Kenji Katayama, Youngwoon Choi, Jeon Woong Kang, Zahid Yaqoob, Peter T. C. So, Tomomi Fujii, Shota Kuwahara, Kiyohide Takado, Tomiki Ikeda

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   16 ( 48 )   27074 - 27077   2014

Effect of electrolyte constituents on the motion of ionic species and recombination kinetics in dye-sensitized solar cells Reviewed

Shota Kuwahara, Soichiro Taya, Naoya Osada, Qing Shen, Taro Toyoda, Kenji Katayama

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   16 ( 11 )   5242 - 5249   2014

Disorder/reorientation dynamics of 4-methoxybenzylidene-4-n-butylaniline observed by heterodyne transient grating method Reviewed

Takaaki Chiba, Hayato Inoue, Shota Kuwahara, Kenji Katayama

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   266   1 - 5   2013.8

Study of vanadium-modified N/Si co-doped TiO2 in aqueous solution and its photocatalytic activity Reviewed

Mase, A, Sugita, T, Mori, M, Iwamoto, S, Tokutome, T, Katayama, K, Itabashi, H

Chemical Engineering Journal   255   440   2013.4

Huge suppression of charge recombination in P3HT-ZnO organic-inorganic hybrid solar cells by locating dyes at the ZnO/P3HT interfaces Reviewed

Qing Shen, Yuhei Ogomi, Sandeep K. Das, Shyam S. Pandey, Kenji Yoshino, Kenji Katayama, Hisayo Momose, Taro Toyoda, Shuzi Hayase

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   15 ( 34 )   14370 - 14376   2013

Detection of non-absorbing charge dynamics via refractive index change in dye-sensitized solar cells Reviewed

Shota Kuwahara, Hiroaki Hata, Soichiro Taya, Naotaka Maeda, Qing Shen, Taro Toyoda, Kenji Katayama

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   15 ( 16 )   5975 - 5981   2013

Carrier dynamics in quantum-dot sensitized solar cells measured by transient grating and transient absorption methods Reviewed

Naotaka Maeda, Hiroaki Hata, Naoya Osada, Qing Shen, Taro Toyoda, Shota Kuwahara, Kenji Katayama

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   15 ( 26 )   11006 - 11013   2013

Ultrafast carrier dynamics in PbS quantum dots Reviewed

Qing Shen, Kenji Katayama, Tsuguo Sawada, Sojiro Hachiya, Taro Toyoda

CHEMICAL PHYSICS LETTERS   542   89 - 93   2012.7

Characterization of Photoexcited Carriers and Thermal Properties of Nanoparticulate TiO2 Film Using Heterodyne Transient Grating Method Reviewed

Hiroaki Hata, Kenji Katayama, Qing Shen, Taro Toyoda

JAPANESE JOURNAL OF APPLIED PHYSICS   51 ( 4 )   2012.4

Multiple electron injection dynamics in linearly-linked two dye co-sensitized nanocrystalline metal oxide electrodes for dye-sensitized solar cells Reviewed

Qing Shen, Yuhei Ogomi, Byung-wook Park, Takafumi Inoue, Shyam S. Pandey, Akari Miyamoto, Shinsuke Fujita, Kenji Katayama, Taro Toyoda, Shuzi Hayase

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   14 ( 13 )   4605 - 4613   2012

Separation of ultrafast photoexcited electron and hole dynamics in CdSe quantum dots adsorbed onto nanostructured TiO2 films Reviewed

Qing Shen, Yasumasa Ayuzawa, Kenji Katayama, Tsuguo Sawada, Taro Toyoda

APPLIED PHYSICS LETTERS   97 ( 26 )   2010.12

Comparative study of by near-field heterodyne transient grating and continuously variable spatial frequency transient grating methods for measurements of terahertz reflection responses Reviewed

H. Inoue, K. Katayama, Q. Shen, T. Toyoda, K. A. Nelson

15TH INTERNATIONAL CONFERENCE ON PHOTOACOUSTIC AND PHOTOTHERMAL PHENOMENA (ICPPP15)   214   012123   2010

Electron dynamics in GaN wafers with an inhomogeneous distribution of defects in the depth direction Reviewed

Yuji Ohashi, Kenji Katayama, Qing Shen, Taro Toyoda

JOURNAL OF APPLIED PHYSICS   106 ( 6 )   2009.9

Terahertz reflection response measurement using a phonon polariton wave Reviewed

Hayato Inoue, Kenji Katayama, Qing Shen, Taro Toyoda, Keith A. Nelson

JOURNAL OF APPLIED PHYSICS   105 ( 5 )   2009.3

Photochemical reaction dynamics measured using the near-field heterodyne transient grating method

Mitsuhide Okuda, Kenji Katayama

Journal of Physical Chemistry A   112 ( 20 )   4545 - 4549   2008.4

Characterization of electron transfer from CdSe quantum dots to nanostructured TiO2 electrode using a near-field heterodyne transient grating technique

Qing Shen, Kenji Katayama, Tsuguo Sawada, Taro Toyoda

Thin Solid Films   516 ( 17 )   5927 - 5930   2008.4

Hybrid flow velocimeter in a microchannel for transparent and turbid liquid using a transmission grating

Mitsumasa Kuraya, Kenji Katayama

Review of Scientific Instruments   79   2008.4

Development of heterodyne detection of dynamic light scattering enhanced by the talbot effect for the size measurement of nanoparticles

Hiroko Nomura, Kenji Katayam

ANALYTICAL SCIENCES   24 ( 4 )   459 - 462   2008.4

Detection of active oxygen species dynamics in TiO(2) sol solutions using single-shot near-field heterodyne transient grating method

Toru Tsuruta, Mitsuhide Okuda, Kenji Katayama

CHEMICAL PHYSICS LETTERS   456 ( 1-3 )   47 - 50   2008.4

Formation dynamics of gold nanoparticles measured by single-shot near-field heterodyne transient grating method

Yuta Nakazato, Mitsuhide Okuda, Kenji Katayama

Chemical Physics Letters   457 ( 1-3 )   313 - 320   2008.4

Hybrid flow velocimeter measurements of transparent and turbid liquids in a microchannel using a transmission grating Reviewed

Mitsumasa Kuraya, Kenji Katayama, Takehiko Kitamori

REVIEW OF SCIENTIFIC INSTRUMENTS   79 ( 2 )   2008.2

Generation and detection of tunable phonon polaritons using a single transmission grating

Kenji Katayama, Hayato Inoue, Hisashi Sugiya, Qing Shen, Taro Toyoda, Keith A. Nelson

Applied Physics Letters   92 ( 3 )   2008

Optical absorption, photosensitization, and ultrafast carrier dynamic investigations of CdSe quantum dots grafted onto nanostructured SnO2 electrode and fluorine-doped tin oxide (FTO) glass

Qing Shen, Makoto Yanai, Kenji Katayama, Tsuguo Sawada, Taro Toyoda

CHEMICAL PHYSICS LETTERS   442 ( 1-3 )   89 - 96   2007.7

Optical absorption and ultrafast carrier dynamics characterization of CdSe quantum dots deposited on different morphologies of nanostructured TiO2 films

Lina J. Diguna, Qing Shen, Akira Sato, Kenji Katayama, Tsuguo Sawada, Taro Toyoda

Materials Science and Engineering C   27 ( 5 )   1514 - 1520   2007.6

Flow velocity detector in a microchip based on a photothermally induced grating

Kenji Katayama, Yoshikuni Kikutani, Takehiko Kitamori

ANALYTICAL SCIENCES   23 ( 6 )   639 - 643   2007.6

Selective detection of real and imaginary parts of refractive index change in solutions induced by photoexcitation using near-field heterodyne transient grating method

Mitsuhide Okuda, Kenji Katayama

Chemical Physics Letters   443 ( 1-3 )   158 - 162   2007.4

Ultrafast charge transfer in surface-enhanced Raman scattering (SERS) processes using transient reflecting grating (TRG) spectroscopy

Kohei Shibamoto, Kenji Katayama, Tsuguo Sawada

CHEMICAL PHYSICS LETTERS   433 ( 4-6 )   385 - 389   2007.1

Preparation of highly concentrated aqueous solution of sodium borate

Isao Tsuyumoto, Tomokazu Oshio, Kenji Katayama

INORGANIC CHEMISTRY COMMUNICATIONS   10 ( 1 )   20 - 22   2007.1

Phonon polariton generation and detection using near-field heterodyne transient grating method

Kenji Katayama, Qing Shen, Taro Toyoda, Keith A. Nelson

Applied Physics Letters   90 ( 17 )   171117 - 171119   2007

In situ microfluidic flow rate measurement based on near-field heterodyne grating method

Kenji Katayama, Hisato Uchimura, Hitomi Sakakibara, Yoshikuni Kikutani, Takehiko Kitamori

Review of Scientific Instruments   78 ( 8 )   083101 - 083107   2007

Characterization of carrier dynamics in semiconductor nanomaterials using near-field heterodyne transient grating method Reviewed

Q. Shen, K. Katayama, T. Sawada, T. Toyoda

MICROPROCESSES AND NANOTECHNOLOGY 2007, DIGEST OF PAPERS   34 - +   2007

Carrier dynamics in porous silicon studied with a near-field heterodyne transient grating method

Masahiro Yamaguchi, Kenji Katayama, Qing Shen, Taro Toyoda, Tsuguo Sawada

CHEMICAL PHYSICS LETTERS   427 ( 1-3 )   192 - 196   2006.8

Optical absorption, photoelectrochemical, and ultrafast carrier dynamic investigations of TiO2 electrodes composed of nanotubes and nanowires sensitized with CdSe quantum dots

Qing Shen, Kenji Katayama, Tsuguo Sawada, Masahiro Yamaguchi, Taro Toyoda

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS   45 ( 6B )   5569 - 5574   2006.6

「実験科学講座 第5版 分光（Ⅰ）（全640頁）」のうち 9. その他の分光法 9.1 「光音響分光法（pp.577-586）」

編者 田原太平, 澤田嗣郎, 片山建二

（株）丸善   2005.10

Formation of a ripple pattern at a water/silicon interface using an oscillating bubble Reviewed

H Yonekubo, K Katayama, T Sawada

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING   81 ( 4 )   843 - 846   2005.9

Study of ultrafast carrier dynamics of nanostructured TiO2 films with and without CdSe quantum dot deposition using lens-free heterodyne detection transient grating technique Reviewed

Q Shen, K Katayama, M Yamaguchi, T Sawada, T Toyoda

THIN SOLID FILMS   486 ( 1-2 )   15 - 19   2005.8

Lens-free heterodyne transient grating technique Reviewed

K Katayama, Q Shen, T Toyoda, M Yamaguchi, T Sawada

JOURNAL DE PHYSIQUE IV   125   349 - 353   2005.6

Photoexcited hole dynamics in TiO2 nano crystalline films characterized using a lens-free heterodyne detection transient grating techniqu

Chem. Phys. Lett.   419   464 - 468   2005.2

Carrier dynamics of anatase and rutile TiO2 nanostructured electrodes adsorbed with CdSe quantum dots Reviewed

Qing Shen, Yoki Kumagai, Kenji Katayama, Masahiro Yamaguchi, Tsuguo Sawada, Taro Toyoda

IQEC, International Quantum Electronics Conference Proceedings   2005   781 - 782   2005

Photoexcited carrier dynamic characterization of TiO2 electrodes composed of different size mixture of nanoparticles sensitized with CdSe quantum dots Reviewed

Taro Toyoda, Yuki Kumagai, Qing Shen, Masahiro Yamaguchi, Tsuguo Sawada, Kenji Katayama

IQEC, International Quantum Electronics Conference Proceedings   2005   253 - 254   2005

「先端の分析法－理工学からナノ・バイオまで（全1000頁）」のうち第2章 物理的検出法 第1節 一般分光法 5.「光熱変換分光法（pp.111-117頁）」

監修 梅澤喜夫, 澤田嗣郎, 寺部茂, 片山建二, 澤田嗣郎

（株）エヌ・ティー・エス   2004.12

「新訂版 表面科学の基礎と応用（全1592頁）」のうち 第1編 基礎編 第10章 固液界面の基礎 第4節 「固液界面の計測」

編集者代表, 岩澤康裕, 片山建二

（株）エヌ・ティー・エス   343352   2004.6

Dose dependence of carrier and heat dynamics at an ion-implanted silicon surface measured using lens-free heterodyne transient grating method Reviewed

K Katayama, M Yamaguchi, T Sawada

JOURNAL OF APPLIED PHYSICS   94 ( 8 )   4904 - 4907   2003.10

Lens-free heterodyne transient grating method for dynamics measurement of photoexcited species in liquid Reviewed

M Yamaguchi, K Katayama, T Sawada

CHEMICAL PHYSICS LETTERS   377 ( 5-6 )   589 - 594   2003.8

Formation of ring patterns surrounded by ripples by single-shot laser irradiation with ultrashort pulse width at the solid/liquid interface Reviewed

Kenji Katayama, Hideaki Yonekubo, Tsuguo Sawada

Applied Physics Letters   82 ( 24 )   4244 - 4246   2003.6

Lens-free heterodyne detection of transient grating Reviewed

Kenji Katayama, Masahiro Yamaguchi, Tsuguo Sawada

Applied Physics Letters   82 ( 17 )   2775 - 2777   2003.6

Fundamental processes of surface enhanced Raman scattering detected by transient reflecting grating spectroscopy Reviewed

K Shibamoto, K Katayama, T Sawada

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   158 ( 2-3 )   105 - 110   2003.6

Fundamental processes of surface enhanced Raman scattering detected with transient reflecting grating spectroscopy Reviewed

K Shibamoto, K Katayama, M Fujinami, T Sawada

REVIEW OF SCIENTIFIC INSTRUMENTS   74 ( 1 )   910 - 912   2003.1

Transient reflecting grating spectroscopy for defect analysis in surface region of semiconductors Reviewed

K Katayama, H Donen, T Sawada

REVIEW OF SCIENTIFIC INSTRUMENTS   74 ( 1 )   902 - 904   2003.1

Laser processing at solid-liquid interfaces using femtosecond pulse laser sources

K Katayama, H Yonekubo, T Sawada

FOURTH INTERNATIONAL SYMPOSIUM ON LASER PRECISION MICROFABRICATION   5063   367 - 369   2003

Ultrafast nonlinear response of high density carriers at silicon surface detected by simultaneous measurements of transient reflecting first and second order diffractions Reviewed

K Katayama, Y Inagaki, T Sawada

JOURNAL OF APPLIED PHYSICS   92 ( 9 )   5233 - 5237   2002.11

Analysis of transient reflecting grating spectrum for silicon surface Reviewed

Kenji Katayama, Daisuke Taniguchi, Tsuguo Sawada

Analytical Sciences   17   i87 - 90   2002.8

Fundamental processes of surface enhanced Raman scattering detected with transient reflecting grating spectroscopy Reviewed

Kohei Shibamoto, Kenji Katayama, Masanori Fujinami, Tsuguo Sawada

Analytical Sciences   17   91 - 94   2002.8

Transient reflecting grating spectroscopy for defect analysis of surface region of semiconductors Reviewed

H Donen, K Katayama, T Sawada

JOURNAL OF APPLIED PHYSICS   92 ( 3 )   1367 - 1371   2002.8

Ultrafast dynamics at a silicon surface detected with femtosecond transient reflecting grating spectroscopy Reviewed

K Katayama, K Sugai, Y Inagaki, T Sawada

JOURNAL OF APPLIED PHYSICS   91 ( 3 )   1074 - 1080   2002.2

Evaluation of thermal and elastic properties for solid surfaces using transient reflecting grating method

Kenji Katayama, Qing Shen, Akira Harata, Tsuguo Sawada

Proceedings of 10th International Congress of Fracture   100930OR   2001.12

Influence of annealing process on ultrafast carrier dynamics for ion-implanted silicon surface

Hisrishi Donen, Yohei Inagaki, Kenji Katayama, Tsuguo Sawada

Proceedings of 10th International Congress of Fracture   100931OR   2001.12

Recent advances of photothermal spectroscopy

Tsuguo Sawada, Kenji Katayama

Proceedings of 10th International Congress of Fracture   100927OR   2001.12

Direct observation of ultrafast charge transfer in relation to the surface enhanced Raman scattering activation detected by transient reflecting grating spectroscopy Reviewed

K Katayama, K Shibamoto, T Sawada

CHEMICAL PHYSICS LETTERS   345 ( 3-4 )   265 - 271   2001.9

Ultrafast processes at a silicon surface detected with time-resolved transient reflecting spectroscopy

Kenji Katayama, Yohei Inagaki, Tsuguo Sawada

Proceedings of 12th International Conference on Thermal Engineering and Thermogrammetry   61 - 64   2001.6

Detection using transient reflecting grating spectroscopy for the ultrafast interaction between photoexcited electrons and adsorbed molecules at a gold surface Reviewed

K Shibamoto, K Katayama, M Fujinami, T Sawada

ANALYTICAL SCIENCES   17   S255 - S258   2001

Ultrafast dynamics of CdSxSe1-x nanocrystals doped in glasses studied by ultrafast transient lensing effect Reviewed

Q Shen, T Toyoda, Y Hirose, K Katayama, H Yui, M Fujinami, T Sawada, A Harata

ANALYTICAL SCIENCES   17   S241 - S244   2001

Direct measurement of non-equilibrium carrier diffusion at a Si surface Reviewed

Y Inagaki, K Katayama, M Fujinami, T Sawada

ANALYTICAL SCIENCES   17   S251 - S254   2001

Ultrafast two-step thermalization processes of photoexcited electrons at a gold surface: Application of a wavelength-selective transient reflecting grating method Reviewed

K Katayama, Y Inagaki, T Sawada

PHYSICAL REVIEW B   61 ( 11 )   7332 - 7335   2000.3

Generation and observation of GHz ultrasonic waves on liquid surfaces and a liquid/liquid interface by transient reflecting grating method Reviewed

Sachiyo Ikeda, Kenji Katayama, Takayuki Tanaka, Tsuguo Sawada, Isao Tsuyumoto, Akira Harata

Journal of Chemical Physics   111 ( 20 )   9393 - 9397   1999.11

Generation and observation of GHz ultrasonic waves on liquid surfaces and the liquid/liquid interfaces by short pulsed-laser Reviewed

Sachiyo Ikeda, o

Journal of Chemical Physics   111 ( 20 )   9393 - 9397   1999.11

Picosecond energy transfer at gold/electrolyte interfaces using transient reflecting grating method under surface plasmon resonance condition Reviewed

K Katayama, T Sawada, Tsuyumoto, I, A Harata

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   72 ( 11 )   2383 - 2388   1999.11

Generation and observation of ultrasonic waves on liquid surfaces by transient reflecting grating method Reviewed

S Ikeda, K Katayama, Tsuyumoto, I, A Harata, T Kitamori, T Sawada

PHOTOACOUSTIC AND PHOTOTHERMAL PHENOMENA   463   472 - 474   1999

Detection of photoinduced electronic, thermal, and acoustic dynamics of gold film using a transient reflecting grating method under three types of surface plasmon resonance conditions Reviewed

K Katayama, T Sawada, Q Shen, A Harata

PHYSICAL REVIEW B   58 ( 13 )   8428 - 8436   1998.10

Picosecond energy transfer at Au/electrolyte interfaces investigated by transient reflecting grating method under surface plasmon resonance condition

Kenji Katayama, Isao Tsuyumoto, Akira Harata, Tsuguo Sawada

Proceedings of International Seminor on Photothermal Phenomena and their Application   213 - 218   1998.10

表面プラズモン共鳴過渡反射格子法による金/溶液界面のピコ秒時間分解エネルギー移動計測

片山建二, 露本伊佐男, 原田 明, 澤田嗣郎

日本化学会第74春季年会講演要旨集   407   1998.3

Detection of Photo-Induced Electronic, Thermal and Acoustic Dynamics of a Gold Film Using a Transient Reflecting Grating Method under Three Types of Surace Plasmon Resonance Conditions International journal

Kenji KATAYAMA, Tsuguo SAWADA, Qing SHEN, and Akira HARATA

Physical Review B   58 ( 13 )   8428 - 8436   1998

GHz ultrasonics measurement using transienet reflecting grating under a surface plasmon resonance condition Reviewed

Kenji Katayama, Qing Shen, Akira Harata, Tsuguo Sawada

Proceedings of Acoustical Society of America and Acoustical Society of Japan Third Joint Meeting   575 - 578   1996.12

Unusual enhancement of transient reflecting grating signal under a surface plasmon resonance condition Reviewed

Kenji Katayama, Qing Shen, Akira Harata, Tsuguo Sawada

Applied Physics Letters   69 ( 17 )   2468 - 2470   1996.9

Enhancement of transient reflecting grating amplitude under surface plasmon resonance Reviewed

Q Shen, K Katayama, A Harata, T Sawada

9TH INTERNATIONAL CONFERENCE ON PHOTOACOUSTIC AND PHOTOTHERMAL PHENOMENA, CONFERENCE DIGEST   345 - 346   1996

Local Extraction and Condensation under a Microscope Using the Optically Controlled Phase Separation of a Thermoresponsive Polymer

Hayato INOUE, Takayuki YAMAMOTO, Shota KUWAHARA, Kenji KATAYAMA

Chemistry-an Asian Journal   p.108   2013.1

PHOTOACOUSTIC AND ULTRAFAST CARRIER DYNAMICS OF Au QUANTUM DOTS GRAFTED ONTO NANOSTRUCTURED TiO_2 ELECTRODES

SHEN Qing, SUGANUMA Rihito, KATAYAMA Kenji, SAWADA Tsuguo, TOYODA Taro

29   140 - 142   2008.10

1-04P-17 Photoacoustic Spectra and Ultrafast Carrier Dynamics of Nanostructured TiO_2 Films Sensitized with CdS Quantum Dots(Poster session 1)

Sato Akira, Shen Qing, Katayama Kenji, Sawada Tsuguo, Toyoda Taro

Proceedings of Symposium on Ultrasonic Electronics   28   49 - 50   2007.11

P3-38 Photoacoustic and Photoelectrochemical Characterization of CdSe Quantum Dots Grafted onto Fluorine-Doped Tin Oxide (FTO) Glass and Nanostructured SnO_2 Electrode(Poster session 3)

Toyoda Taro, Yanai Makoto, Shen Qing, Katayama Kenji, Sawada Tsuguo

Proceedings of Symposium on Ultrasonic Electronics   27   449 - 450   2006.11

特集 化学のフロンティア2000 はばたけ若き研究者たち 超高速現象を簡単に測る －レンズなしのフェムト秒時間分解分光法－

片山建二

化学と工業   57 ( 2 )   91 - 94   2004.2

[特集２]微細加工を支える計測・制御センサ応用システム 固液界面ナノ領域を分析する光熱変換分光法

片山建二, 澤田嗣郎

M & E3月号   96 - 100   2002.3

進捗総説 光熱変換分光法

由井宏治, 片山建二, 澤田嗣郎

ぶんせき7月号   319   361 - 365   2001.7

最近の展望 光熱変換分光法の展開

片山建二, 由井宏治, 澤田嗣郎

応用物理   70 ( 6 )   672 - 676   2001.6

フェムト秒の世界を測る

片山建二, 澤田嗣郎

化学と教育   47 ( 6 )   390 - 391   1999.6

Study of superspeed phenomenon of liquid surface using picosecond laser and ripples.

池田幸代, 片山建二, 露本伊佐男, 沢田嗣郎, 原田明

日本分析化学会年会講演要旨集   46th   1997

Photo-induced charge dynamics in photo-devices -solar cell, photocatalysis, water splitting Invited International conference

Kenji Katayama

Seminar @ San Diego State University  2019.8 

Direct imaging of phase transition of liquid crystals by nanosecond time-resolved transient grating phase imaging Invited International conference

Kenji Katayama

SPIE Liquid Crystals XXIII  2019.8 

Photo-controllable active liquid crystalline droplet Invited International conference

Kenji Katayama

The 23th International Symposium on Advanced Display Material and Devices (ADMD)  2019.7 

Photo-induced charge dynamics in photo-devices -solar cell, photocatalysis, water splitting Invited International conference

Kenji Katayama

Seminar @ Shenzhen Institute of Advanced Technology, CAS  2019.7 

Photo-controllable active liquid crystalline droplet Invited International conference

Kenji Katayama

The 41st PIERS  2019.6 

Photo-induced dynamics of photo-devices -solar cell, photocatalysis, water splitting Invited International conference

Kenji Katayama

Seminar at OIST  2019.1 

Photo-response analysis of photo-devices by transient grating phase imaging microscopy

Kenji Katayama

日本分析化学会第67年会  2018.9 

The Origin of optical nonlinearity of liquid crystals revealed by transient grating imaging Invited International conference

Kenji Katayama

International Meeting on Information Display (IMID 2018)  2018.8 

Origin of optical nonlinearity of photo-responsive liquid crystals revealed by transient grating imaging Invited International conference

K. Katayama, Kin-ichiro Nagasaka, Minaka Minagawa, Woon Yoon Soh

SPIE Optics+Photonics, Liquid Crystals XXII  2018.8 

Photo-induced Orientation Change of Photo-responsive Liquid Crystals Invited International conference

Kenji Katayama

The 40th PIERS  2018.8 

Origin of optical nonlinearity of photo-responsive liquid crystals revealed by transient grating imaging Invited International conference

Kenji Katayama

Photonics North 2018  2018.6 

Photo-induced dynamics of photo-devices -Solar cells, photocatalysis, water splitting Invited International conference

Kenji Katayama

Seminar at VISTEC  2018.3 

ソフトマターの相変化で何が起こるか？ －時間分解法・顕微分光法による観察

日本化学会 北海道支部セミナー  2017.12 

格子パターン励起位相差顕微鏡による液晶の相転移領域伝搬の直接計測

第７回ソフトマター研究会  2017.10 

Heterogeneous reaction dynamics revealed by transient grating technique

Boston College, Physical Chemistry Seminar  2014.9 

Molecular dynamics in azobenzene liquid crystal polymer films studied by transient grating technique

S. Kuwahara, T. Ikeda

SPIE Optics+Photonics, Liquid Crystal XVIII  2014.8 

Carrier dynamics in dye or quantum dot sensitized solar cells

S. Kuwahara

6th East Asia Symposium on Functional Dyes and Advanced Materials  2013.9 

Molecular dynamics of liquid crystal revealed by transient grating technique

17th International Symposium on Advanced Display Materials and Devices  2013.6 

高耐圧ワンタッチ脱着マイクロコネクターの開発（２）

片山建二, ほか

日本分析化学会第54年会講演要旨集,日本分析化学会  2005.9 

フローイング熱レンズ効果を利用したマイクロチップ内流量の非接触・in-situ測定

菊谷善国, ほか

電気学会研究会、フィジカルセンサ研究会要旨集,電気学会  2005.9 

Structural influence on the photoexcited carrier dynamics of TiO2 films characterized using lens-free heterodyne detection transient grating technique

Q. Shen

Abstract of 11th Asian Chemical Congress/Committee of 11th ACC  2005.8 

高耐圧ワンタッチ脱着マイクロコネクターの開発

片山建二, ほか

シンポジウム「マイクロ化学研究開発の全容」要旨集,シンポジウム「マイクロ化学研究開発の全容」実行委員会  2005.8 

Differences of carrier dynamics of anatase and rutile TiO2 nanostructured electrodes and the effect of CdSe quantum dot deposition

Qing Shen, o

ナノ学会第3回大会講演予稿集,ナノ学会  2005.3 

CdSe量子ドット増感ナノチューブ・ナノワイヤTiO2電極の光吸収・光電気化学特性とキャリアダイナミクス

沈青, ほか

2005年春季第52回応用物理学関係連合講演会要旨集,応用物理学会  2005.3 

レンズフリー過渡格子法の開発による分光分析

山口真広, 片山建二, 藤浪真紀, 澤田嗣郎

日本分析化学会第53年会講演要旨集,日本分析化学会  2004.9 

固液界面を利用したレーザーアブレーション深さ制御

米久保秀明, 片山建二, 藤浪真紀, 澤田嗣郎

日本分析化学会第53年会講演要旨集,日本分析化学会  2004.9 

Lens-free heterodyne transient grating technique

Kenji Katayama, Tsuguo Sawada, Keith A. Nelson

Abstract of 13th International Conference on Photothermal and Photoacoustic Phenomena/Committee of ICPPP 13  2004.7 

ナノ構造TiO2電極に吸着したCdSe量子ドットの光励起キャリアのダイナミクス

沈 青, 片山建二, 澤田嗣郎, 豊田太郎

2004年春季第51回応用物理学関係連合講演会講演予稿集,応用物理学会  2004.3 

Studies of CdSe-sensitized nanostructured TiO2 electrodes: optical absorption, photoelectrochemical current and ultrafast carrier dynamics

Qing Shen, Dai Arae, Kenji Katayama, Tsuguo Sawada, Taro Toyoda

Abstract of The 6th AIST International Symposium on Photoreaction Control and Photofunctional Materials/National Institute of Advanced Industrial Science and Technology  2003.9 

過渡反射格子スペクトル法を用いた表面増強ラマン散乱素過程に見られる電荷移動の追跡

芝本幸平, 片山建二, 藤浪真紀, 澤田嗣郎

第64回分析化学討論会講演要旨集,日本分析化学会  2003.6 

レンズフリー過渡格子法の開発と固体・液体試料への適用例

山口真広, 片山建二, 藤浪真紀, 澤田嗣郎

第64回分析化学討論会講演要旨集,日本分析化学会  2003.6 

固液界面におけるフェムト秒パルスレーザー加工

米久保秀明, 片山建二, 藤浪真紀, 澤田嗣郎

第64回分析化学討論会講演要旨集,日本分析化学会  2003.6 

簡易型超高速時間分解分光法の開発とさまざまな試料への応用

片山建二, 山口真広, 澤田嗣郎

平成15年度日本分光学会春季講演会講演要旨集,日本分光学会  2003.5 

フェムト秒レーザーを用いた固液界面でのレーザー加工

片山建二, 米久保秀明, 澤田嗣郎

平成15年度日本分光学会春季講演会講演要旨集,日本分光学会  2003.5 

Ultrafast charge transfer in surface enhanced Raman scattering processes detected with transient reflecting grating spectroscopy

Kohei Shibamoto, Kenji Katayama, Masanori Fujinami, Tsuguo Sawada

Abstract of Nanoarchitectonics Workshop 2003 Nano-Space Engineering for Nanoarchitectonics (NSENA 2003)/Committee of NSENA 2003  2003.3 

Ultrafast carrier dynamics of CdSe-sensitized nanostructured TiO2 electrodes using lens-free heterodyne detection transient grating technique

Qing Shen, Kenji Katayama, Tsuguo Sawada, Taro Toyoda

Abstract of 7th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ICACS 2003)/Committee of ICAC 2003  2003.3 

固液界面におけるフェムト秒パルスレーザー加工

片山建二, 米久保秀明, 澤田嗣郎

2003年春季第50回応用物理学関係連合講演会要旨集,応用物理学会  2003.3 

ヘテロダイン計測を用いた簡易型キャリヤダイナミクス計測法の開発

片山建二, 山口真広, 澤田嗣郎

2003年春季第50回応用物理学関係連合講演会要旨集,応用物理学会  2003.3 

レンズフリーヘテロダイン過渡格子法を利用した光励起分子ダイナミクス計測

山口真広, 片山建二, 藤浪真紀, 澤田嗣郎

日本化学会第83春季年会講演要旨集,日本化学会  2003.3 

固液界面におけるフェムト秒パルスレーザー加工

米久保秀明, 片山建二, 藤浪真紀, 澤田嗣郎

日本化学会第83春季年会講演要旨集,日本化学会  2003.3 

過渡反射格子スペクトル法を用いたSERS効果発現過程に見られる超高速キャリア移動過程の追跡

芝本幸平, 片山建二, 藤浪真紀, 澤田嗣郎

分子構造総合討論会2002要旨集,分子構造討論会運営委員会  2002.10 

過渡反射格子スペクトル法を用いた半導体表面の欠陥評価

片山建二, 道念裕司, 澤田嗣郎

日本分析化学会第51年会講演要旨集,日本分析化学会  2002.9 

Transient reflecting grating spectroscopy used for defect analysis in surface region of semiconductors

Kenji Katayama, Hiroshi Donen, Tsuguo Sawada

Abstract of 12th International Conference on Photothermal and Photoacoustic Phenomena/Committee of ICPPP 12  2002.6 

Ultrafast charge transfer in surface enhanced raman scattering processes detected with transient reflecting grating spectroscopy

Kohei Shibamoto, Kenji Katayama, Masanori Fujinami, Tsuguo Sawada

Abstract of 12th International Conference on Photothermal and Photoacoustic Phenomena/Committee of ICPPP 12  2002.6 

吸着種存在下での金電極界面における超高速電子的相互作用の観測

村川暁, 片山建二, 藤浪真紀, 澤田嗣郎

第63回分析化学討論会講演要旨集,日本分析化学会  2002.5 

超高速時間分解分光法を用いた表面増強ラマン散乱の素過程の観測

片山建二, 澤田嗣郎

平成13年度日本分光学会秋季講演会講演要旨集,日本分光学会  2001.12 

Evaluation of thermal and elastic properties for solid surfaces using transient reflecting grating method

Kenji Katayama, Tsuguo Sawada

Abstract of 10th International Congress on Fracture/Committee of ICF 10  2001.12 

Recent advances of photothermal spectroscopy

Tsuguo Sawada, Kenji Katayama

Abstract of 10th International Congress of Fracture/Committee of ICF 10  2001.12 

Influence of annealing process on ultrafast carrier dynamics for an ion-implanted silicon surface

Hiroshi Donen, Kenji Katayama, Tsuguo Sawada

Abstract of 10th International Congress on Fracture/Committee of ICF 10  2001.12 

フェムト秒時間分解計測法を用いた表面増強ラマン散乱効果の素過程の観測(2)

芝本幸平, 片山建二, 藤浪真紀, 澤田嗣郎

日本分析化学会第50年会講演要旨集,日本分析化学会  2001.11 

ナノ領域の分析化学

片山建二, 由井宏治, 澤田嗣郎

第5回分析化学東京シンポジウム講演要旨集,日本分析化学会  2001.9 

フェムト秒時間分解計測法を用いた表面増強ラマン散乱効果の素過程の観測

片山建二, 芝本幸平, 澤田嗣郎

日本化学会第80秋季年会講演要旨集,日本化学会  2001.9 

フェムト秒時間分解過渡反射格子法を用いた半導体表面分析

片山建二, 道念裕司, 澤田嗣郎

第45回日本学術会議材料研究連合講演会要旨集,日本材料学会  2001.9 

Influence of annealing process on ultrafast carrier dynamics for an ion-implanted silicon surface

Hiroshi Donen, Kenji Katayama, Tsuguo Sawada

Abstract of International Congress on Analytical Sciences 2001/Committee of ICAS 2001  2001.8 

Ultrafast transient reflecting grating spectroscopy

Kenji Katayama, Tsuguo Sawada

Abstract of International Congress on Analytical Sciences 2001/Committee of ICAS 2001  2001.8 

Fundamental processes of surface enhanced Raman scattering detected with transient reflecting grating spectroscopy

Kohei Shibamoto, Kenji Katayama, Tsuguo Sawada

Abstract of International Congress on Analytical Sciences 2001/Committee of ICAS 2001  2001.8 

光熱変換分光法を用いた薄膜のキャラクタリゼーション

片山建二, 澤田嗣郎

日本分光学会第37回夏期セミナー講演要旨集,日本分光学会  2001.6 

過渡反射格子スペクトル法を用いてSERS効果の素過程に関与する吸着分子-金間の超高速キャリア相互作用の観測

芝本幸平, 片山建二, 藤浪真紀, 澤田嗣郎

第62分析化学討論会講演要旨集,日本分析化学会  2001.6 

フェムト秒時間分解過渡反射格子スペクトル法を用いた半導体表面のキャリヤダイナミクス測定

片山建二, 澤田嗣郎

平成13年度日本分光学会春季講演会要旨集,日本分光学会  2001.5 

フェムト秒時間分解過渡反射格子スペクトル測定法によるシリコン表面のキャリヤダイナミクス測定(2)

片山建二, 稲垣洋平, 道念裕司, 澤田嗣郎

日本化学会第79春季年会要講演旨集,日本化学会  2001.3 

フェムト秒時間分解過渡反射格子スペクトル測定法によるシリコン表面のキャリヤダイナミクス測定(3) イオン注入Siのアニール過程において

道念裕司, 片山建二, 藤浪真紀, 澤田嗣郎

日本化学会第79春季年会講演要旨集,日本化学会  2001.3 

Detection using transient reflecting grating spectroscopy for the ultrafast interaction between photoexcited electrons and adosorbed molecules at a gold surface

Kohei Shibamoto, Kenji Katayama, Tsuguo Sawada

Abstract of International Chemical Congress of Pacific Societies 2000-Pacifichem/Committee of Pacifichem 2000  2000.12 

Ultrafast carrier dynamics at various semiconductor surfaces using femtosecond transient reflecting grating spectroscopy

Yohei Inagaki, Kenji Katayama, Tsuguo Sawada

Abstract of International Chemical Congress of Pacific Societies 2000-Pacifichem/Committee of Pacifichem 2000  2000.12 

Detection of ultrafast carrier dynamics at silicon surface using femtosecond transient reflecting grating spectroscopy

Kenji Katayama, Tsuguo Sawada

Abstract of International Chemical Congress of Pacific Societies 2000-Pacifichem/Committee of Pacifichem 2000  2000.12 

過渡反射格子スペクトル法を用いた金から吸着分子への高速エネルギー移動の観測

片山建二, 芝本幸平, 藤波真紀, 澤田嗣郎

日本分析化学会第49年会講演要旨集,日本分析化学会  2000.9 

超高速時間分解分光法を用いた固体表面でのキャリヤ挙動の追跡

片山建二, 稲垣洋平, 芝本幸平, 藤波真紀, 澤田嗣郎

第4回分析化学東京シンポジウム講演要旨集,日本分析化学会  2000.9 

Direct measurement of non-equilibrium carrier diffusion at a Si surface

Yohei Inagaki, Kenji Katayama, Masanori Fujinami, Tsuguo Sawada

Abstract of 11th International Conference on Photothermal and Photoacoustic Phenomena/Committee of ICPPP 11  2000.6 

Detection using transient reflecting grating spectroscopy for the ultrafast interaction between photoexcited electrons and adsorbed molecules at a gold surface

Kohei Shibamoto, Kenji Katayama, Masanori Fujinami, Tsuguo Sawada

Abstract of 11th International Conference on Photothermal and Photoacoustic Phenomena/Committee of ICPPP 11  2000.6 

Femtosecond carrier dynamics at each energy state at gold surface: Application of a new wavelength selective transient reflecting grating method

Kenji Katayama, Yohei Inagaki, Tsuguo Sawada

Abstract of 11th International Conference on Photothermal and Photoacoustic Phenomena/Committee of ICPPP 11  2000.6 

フェムト秒時間分解過渡反射格子法によるシリコン表面のキャリヤダイナミクス測定

片山建二, 藤波真紀, 澤田嗣郎

第61回分析化学討論会講演要旨集,日本分析化学会  2000.5 

フェムト秒時間分解過渡反射格子スペクトル法によるシリコン表面のキャリヤダイナミクス測定

片山建二, 藤波真紀, 澤田嗣郎

平成12年度日本分光学会春季講演会講演要旨集,日本分光学会  2000.5 

過渡レンズ分光法によるガラス中に分散したCdSxSe1-xナノ微粒子の緩和ダイナミクスの計測

沈 青, ほか

第61回分析化学討論会講演要旨集,日本分析化学会  2000.5 

フェムト秒時間分解過渡反射格子スペクトル法によるシリコン表面のキャリヤダイナミクス測定

片山建二, 藤波真紀, 澤田嗣郎

日本化学会第78回春季年会講演要旨集,日本化学会  2000.3 

過渡反射格子法による液体表面ギガヘルツ超音波の解析（２）

谷口大賀, 片山建二, 藤波真紀, 澤田嗣郎

日本化学会第78回春季年会講演要旨集,日本化学会  2000.3 

過渡反射格子法を用いた固体表面の熱、弾性物性の評価

片山建二, 澤田嗣郎

第20回日本熱物性シンポジウム講演論文集,日本熱物性学会  1999.10 

超高速光熱変換現象を用いた固体表面、固液界面のナノ領域物性評価法の開発

片山建二, 稲垣洋平, 藤浪眞紀, 澤田嗣郎

第3回分析化学東京シンポジウム講演要旨集,日本分析化学会  1999.9 

フェムト秒白色プローブパルス光を用いた過渡反射格子スペクトル法の開発

片山建二, 露本 伊佐男, 原田 明, 澤田嗣郎

分析化学討論会第60年会講演要旨集,日本分析化学会  1999.5 

過渡反射格子法による液液界面ダイナミクスの観察

池田幸代, ほか

日本化学会第76春季年会講演要旨集,日本化学会  1999.3 

超高速光熱変換分析法による固液界面エネルギー移動計測

露本伊佐夫, ほか

第2回分析化学東京シンポジウム講演要旨集,日本分析化学会  1998.9 

表面プラズモン共鳴を利用した高感度過渡反射格子法による金の励起電子のフェムト秒ダイナミクス測定

片山建二, 露本伊佐男, 澤田嗣郎

日本化学会第75秋季年会講演要旨集,日本化学会  1998.9 

Generation and observation of ultrasonic waves on liquid surfaces by transient reflecting grating method

Sachiyo Ikeda, o

Abstract of Photothermal and Photoacoustic Phenomena Tenth International Conference/Committee of ICPPP 10  1998.8 

Picosecond energy transfer at gold / solution interfaces using a transient reflecting grating method

Kenji Katayama, Qing Shen, Akira Harata, Tsuguo Sawada

Abstract of Oji International Seminor on Photothermal Phenomena and Their Applications/The University of Tokyo  1998.7 

表面プラズモン共鳴現象を利用した過渡反射格子法による固液界面計測

片山建二, 露本 伊佐男, 原田 明, 澤田嗣郎

日本分析化学会第46年会講演要旨集,日本分析化学会  1997.10 

高速光熱変換法を用いた金単結晶／溶液界面での熱伝導プロセスの解析

片山建二, 鈴木敬紀, 露本伊佐男, 原田 明, 澤田嗣郎

日本化学会第73秋季年会講演要旨集,日本化学会  1997.9 

全反射過渡格子法を用いた表面プラズモンの高速光熱変換計測

片山建二, 沈 青, 原田 明, 澤田嗣郎

日本化学会第71秋季年会講演要旨集,日本化学会  1996.10 

全反射過渡格子法を用いた表面プラズモンの高速光熱変換測定

片山建二, 沈 青, 原田明, 澤田嗣郎

第57回分析化学討論会講演要旨集,日本分析化学会  1996.5 

増感型太陽電池の再結合を調べる顕微分光分析法

2014.10 - 　

奨学寄付金 

片山建二

マイクロスケール実験を用いた物理化学実験教育

2013.4 - 2014

科学技術振興機構  奨学寄付金 

片山建二

マイクロチップと新型動的光散乱法を用いたリポソームの反応速度解析法の開発

2011.4 - 2014

旭硝子財団  奨学寄付金 

片山建二

マイクロスケール実験を用いた化学工学実験教育

2012.4 - 2013

科学技術振興機構  奨学寄付金 

片山建二

マイクロチップ用動的光散乱法を用いたリポソームの反応速度解析法の開発

2011.4 - 2012

中谷電子計測技術振興財団  奨学寄付金 

片山建二

酸化チタンナノ粒子薄膜の熱伝導と電子・ホール輸送特性

2011.4 - 2012

日本板硝子材料工学助成会  奨学寄付金 

片山建二

Photodegradation dynamics of dye molecuses measured by near-field heterodyne transient grating method

2007.4 - 2009.3

受託研究費 協和発酵ケミカルシーズコンテスト 

片山建二

Hybrid detector for microchip using the near-field light of diffractive optics

2006.4 - 2009.3

文部科学省  科学研究費補助金 若手研究（Ａ） 

片山 建二

Compact equipment of terahertz spectroscopy using phonon polariton

2007.4 - 2008.3

その他 中央大学特定課題研究費 

片山建二

Ultrafast carrier dynamics at solid surfaces using heterodyne transient grating spectroscopy

2003.9 - 2005.3

文部科学省  科学研究費補助金（日本学術振興会・文部科学省） 海外特別研究員 

片山建二

Highly-sensitive vibrational spectrascopy with spatial resolution beyond diffraction limit

Grant number：14340189  2002 - 2004

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)  NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

FUTAMATA Masayuki, MATSUDA Naoki, SHIMIZU Toshimi, SAWADA Tsuguo

Development of new Raman spectroscopy using the electromagnetic enhancement of surface enhanced Raman scattering effect

2002.4 - 2003.9

文部科学省  科学研究費補助金（日本学術振興会・文部科学省） 若手研究（A） 

片山建二

極短パルスレーザーによる電子過剰水溶液の物性研究とその分光学的応用

Grant number：15655022  2003 　 　

日本学術振興会  科学研究費助成事業  萌芽研究  東京大学

澤田 嗣郎, 池添 泰弘, 片山 建二, 藤浪 眞紀

Development of near field laser induced ablation spectroscopy

Grant number：14350443  2002 - 2003

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)  The University of Tokyo

FUJINAMI Masanori, IKEZOE Yasuhiro, KATAYAMA Kenji, SAWADA Tsuguo

Development of low-frequency domain spectroscopy at liquid interfaces using ultra-short laser pulse and its applications

Grant number：14350442  2002 - 2003

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)  The University of Tokyo

SAWADA Tsuguo, IKEZOE Yasuhiro, KATAYAMA Kenji, FUJINAMI Masanori

光熱変換分光法を用いた液液界面ナノ領域における分子集団挙動・分子間相互作用の研究

Grant number：13129203  2001 - 2003

日本学術振興会  科学研究費助成事業  特定領域研究  東京大学

沢田 嗣郎, 池添 泰弘, 片山 健二, 藤浪 眞紀

Development of ultrafast dynamics at solid surfaces using transient grating spectroscopy

2000.4 - 2002.3

文部科学省  科学研究費補助金（日本学術振興会・文部科学省） 奨励研究 

片山建二

Development of photothermal scanning near-field optical microscope

Grant number：12555234  2000 - 2001

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)  The University of Tokyo

FUJINAMI Masanori, KATAYAMA Kenji, SAWADA Tsuguo

THE DEVELOPMENT OF TIME-RESOLVED TWO-DIMENSIONAL IMAGING INSTRUMENT FOR MONITORING MOLECULAR BEHAVIOR AT LIQUID/LIQUID INTERFACES

Grant number：12450336  2000 - 2001

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)  The University of Tokyo

SAWADA Tsuguo, KATAYAMA Kenji, YUI Hiroharu, FUJINAMI Masanori

Development of picosecond AFM and its application to the surface of semiconductors

Grant number：11555225  1999 - 2000

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B).  The University of Tokyo

SAWADA Tsuguo, KATAYAMA Kenji, YUI Hiroharu, FUJINAMI Masanori

Positron annihilation spectroscopy in behavior of defects by chemical analysis of nano-space in solids

Grant number：11450321  1999 - 2000

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B).  The University of Tokyo

FUJINAMI Masanori, KATAYAMA Kenji, YUI Hiroharu, SAWADA Tsuguo

Nano-Chemistry in Liquid by Photothermal Spectroscopy

Grant number：10305063  1998 - 1999

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)  The University of Tokyo

SAWADA Tsuguo, YUI Hiroharu, FUJINAMI Masanori, KITAMOARI Takehiko, KATAYAMA Kenji

2025   Fundamental Physical Chemistry   Department

2025   Applied Chemistry Laboratory 3   Department

2025   Special seminars in Global Sustainability Science   Graduate school

2025   Advanced Science and Thecnology Ⅰ   Graduate school

2025   Advanced Chemical Spectroscopy   Graduate school

2025   Doctoral Research Ⅰ   Graduate school

2025   Doctoral Research Ⅱ   Graduate school

2025   Doctoral Research Ⅲ   Graduate school

2025   Doctoral Research Ⅳ   Graduate school

2025   Doctoral Research Ⅴ   Graduate school

2025   Doctoral Research Ⅵ   Graduate school

2025   Special Lecture on Applied Chemistry   Graduate school

2025   Master's Research Ⅰ   Graduate school

2025   Master's Research Ⅲ   Graduate school

2025   Master's Research Ⅱ   Graduate school

2025   Master's Research Ⅳ   Graduate school