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Last update 12/23/2011 Japanese page is here

Academic degree
Ph.D. (Applied Physics, Osaka University, 1999)
Academic society
The Japan Society of Applied Physics

The Chemical Society of Japan

The Japanese Photochemistry Association

1994-1995: Bachelor's Program at Osaka University

1995-1997: Master's Program at Osaka University

1997-1999: Ph.D. Program at Osaka University

Akihiro FURUBE

Senior Researcher
Research Institute of Instrumentation Frontier (RIIF)
National Institute of Advanced Industrial Science and Technology (AIST)

Tel. +81-298-61-2953 Fax +81-298-61-4517

Associate Professor
Graduate School of Pure and Applied Sciences in Tsukuba University


Now Accepting Student Applications

  Master Program (MS degree) - 2 years course
  Doctoral program (PhD degree) - 3 years course

The students who want to enter Tsukuba University (Chemistry field in the Graduate School of Pure and Applied Sciences) in April 2010 are being recruited now.

Through the Cooperative Graduate School System, the students attend the classes in Tsukuba University and do experimental research in AIST.

Research Subjects: Development of ultrafast spectroscopic methods and study on reaction dynamics of active species in photofunctional materials and devices.

Please inquire details to the address shown on the left-hand side.

Research subjects
Development of a femtosecond diffuse reflectance spectroscopic system and evaluation of its temporal resolution. ( Applied physics, Osaka University )
Femtosecond diffuse reflectance spectroscopy on aromatic organic crystals. ( Applied physics, Osaka University )
Femtosecond diffuse reflectance spectroscopy on TiO2 powder. ( Applied physics, Osaka University )
Ph.D. Thesis: "Development of femtosecond diffusereflectance spectroscopy and its application to TiO 2 powder catalysts" ( Applied physics, Osaka University )
1999, April-September:
Single molecule fluorescence spectroscopy by scanning probe microscopes. ( LSI, University of Texas at Austin )
1999, September-November:
Ultrafast spectroscopy on gold nano-meter particles. ( LDL, Georgia Institute of Technology )
Ultrafast spectroscopy on photocatalytic material. ( Chemical Resources Laboratory , Tokyo Institute of Technology)
Ultrafast spectroscopy on dye sensitized soller cells and nano-materials

Recent Publication

69 Ryuzi Katoh, Nobuhiro Fuke, Akihiro Furube, Naoki Koide Effect of dye coverage on photo-induced electron injection efficiency in N719-sensitized nanocrystalline TiO2 films Chemical Physics Letters, 489, 202-206 (2010)
70 Luchao Du, Akihiro Furube, Kohjiro Hara, Ryuzi Katoh, and M. Tachiya Mechanism of Particle Size Effect on Electron Injection Efficiency in Ruthenium Dye-Sensitized TiO2 Nanoparticle Films The Journal of Physical Chemistry C, 114, 8135-8143 (2010)
71 Akihiro Furube, Zhong-Sheng Wang, Kenji Sunahara, Kohjiro Hara, Ryuzi Katoh, and Masanori Tachiya Femtosecond Diffuse Reflectance Transient Absorption for Dye-Sensitized Solar Cells under Operational Conditions: Effect of Electrolyte on Electron Injection Journal of The American Chemical Society, 132, 6614-6615 (2010)
72 Steffan Cook, Han Liyuan, Akihiro Furube, and Ryuzi Katoh Singlet Annihilation in Films of Regioregular Poly(3-hexylthiophene): Estimates for Singlet Diffusion Lengths and the Correlation between Singlet Annihilation Rates and Spectral Relaxation The Journal of Physical Chemistry C, 114, 10962–10968 (2010)
73 Zhifu Liu, Masahiro Miyauchi, Yu Uemura, Yan Cui, Kohjiro Hara, Zhigang Zhao, Kenji Sunahara, and Akihiro Furube Enhancing the performance of quantum dots sensitized solar cell by SiO2 surface coating Applied Physics Letters 96, 233107 (2010)􏰀
74 Takeshi Fukuda, Ryohei Kobayashi, Zentaro Honda, Norihiko Kamata, Keita Mori, Yuu Suzuki, Ken Hatano, Akihiro Furube Ultrafast Study of Charge Generation in Silole:Fluorene Mixed Film for Color Selective Organic Photoconductive Device Physica Status Solidi ( c ), 8, 589–591 (2011)
75 Ryuzi Katoh, Kaori Yaguchi, Miki Murai, Sadayuki Watanabe, Akihiro Furube Differences in adsorption behavior of N3 dye on flat and nanoporous TiO2 surfaces Chemical Physics Letters, 497, 48-51 (2010)
76 Steffan Cook, Ryuzi Katoh, and Akihiro Furube Exciton Splitting in Nanoscale Phase-Separated Polythiophene: Fullerene Solar Cell Blends Journal of Nanoelectronics and Optoelectronics, 5, 115-119 (2010)
77 Ryuzi Katoh, Miki Murai, Akihiro Furube Transient absorption spectra of nanocrystalline TiO2 films at high excitation density Chemical Physics Letters, 500, 309–312 (2010)
78 Ryuzi Katoh, Akihiro Furube, Ken-ichi Yamanaka, Takeshi Morikawa Charge separation and trapping in N-doped TiO2 photocatalysts: A time-resolved microwave conductivity (TRMC) study The Journal of Physical Chemistry Letters, 1, 3261–3265 (2010)
79 Daniel Werner, Akihiro Furube, Toshihiro Okamoto, and Shuichi Hashimoto Femtosecond Laser-Induced Size Reduction of Aqueous Gold Nanoparticles: In Situ and Pump-Probe Spectroscopy Investigations Revealing Coulomb Explosion The Journal of Physical Chemistry C, 115, 8503-8512 (2011)
80 Ryuzi Katoh and Akihiro Furube Tunneling-Type Charge Recombination in Nanocrystalline TiO2 Films at Low Temperature The Journal of Physical Chemistry Letters. 2, 1888–1891 (2011)
81 Ryuzi Katoh, Kaori Yaguchi, Akihiro Furube Effect of dye concentration on electron injection efficiency in nanocrystalline TiO2 films sensitized with N719 dye Chemical Physics Letters 511, 336–339 (2011)
82 Kenji Sunahara, Akihiro Furube, Ryuzi Katoh, Shogo Mori, Matthew J. Griffith, Gordon G. Wallace, Pawel Wagner, David L. Officer, and Attila J. Mozer Coexistence of Femtosecond- and Nonelectron-Injecting Dyes in Dye-Sensitized Solar Cells: Inhomogeniety Limits the Efficiency The Journal of Physical Chemistry C, 115, 22084–22088 (2011)

Recent conference presentation

Akihiro FURUBE, Ryuzi KATOH, Hiroki MITSUTA, Tetsuhiko, MIYADERA, Yuji YOSHIDA Picosecond multiple exciton generation from the excited singlet state in rubrene single crystal 219th ECS Meeting Montreal May 2011
Akihiro Furube Ultrafast spectroscopic study on interfacial electron transfer in solar cell nanomaterials Japan - UK Dye-Sensitised & Organic Photovoltaic Workshop (JUDO PV) 2011 Oxford July 2011
Akihiro Furube, Kazuhiko Maeda and Kazunari Domen Transient absorption study on photogenerated carrier dynamics in visible light responsive photocatalysts GaN:ZnO SPIE Optics+Photonics San Diego Aug. 2011
Akihiro Furube Characterization of OPV by femtosecond spectroscopy Workshop on characterizations for OPV
materials and devices
Tsukuba Sep. 2011
Akihiro Furube Femtosecond Spectroscopy and Microscopy of Organic Solar Cell Materials ICTF-15 Kyoto Nov. 2011
Akihiro Furube Ultrafast transient absorption spectroscopy of dye-sensitized solar cells ISSS-6 Tokyo Dec 2011
Akihiro Furube, Kenji Sunahara, Ryuzi Katoh, Shogo Mori, Matthew J. Griffith, Gordon G. Wallace, Pawel Wagner, David L. Officer, and Attila J. Mozer Presence of Non-electron-injecting Dyes in Dye-Sensitized Solar Cells TSRP-2012 Mumbai Jan. 2012
Akihiro Furube, Taizo Yoshinaga, Masayuki Kanehara, Miharu Eguchi, and Toshiharu Teranishi Electric Field Enhancement in NIR Region by Indium Tin Oxide Nanoparticle Film Evaluated by Transient Absorption 2nd Molecular Materials Meeting Singapore Jan. 2012
Akihiro Furube, Hiroyuki Matsuzaki, Ryuzi Katoh, Evan Williams, Vijila Chellapan, Samarendra Singh, Sergey Gorelik, Prashant Sonar, Jonathan Hobley Exciton dynamics of organic photovoltaic polymers under high-density excitation condition 2nd Molecular Materials Meeting Singapore Jan. 2012

Seminar presentations
  • Ultrafast stepwise electron injection from Ru-complex dye into the conduction band of ZnO
    SEMINAR IN INTERDISCIPLIANRY CHEMISTRY AND PHYSICS, University of Maryland, January 29, 2003

<Gourp Seminars>
2003: Emory University, Georgia Institute of Technology, Tokyo Institute of Technology, Lund University, Katholieke Universiteit Leuven
2004: University of Texas at Austin
University of Notre Dame , LENS (in University of Florence),  Ecole Polytechnique Fédérale de Lausanne, Imperial College
2007: CNRS ENS-Cachan, Royal Dutch Shell, LETI-MINATEC, Institute of Physics (CAS)
2008: University of Melbourne
2009: University of Adelaide
2010: Imperial College, Institute of Chemical Research of Catalonia, Universitat Jaume I de Castelló, Pacific Northwest National Labratory, Yonsei University