Development of femtosecond microscopic diffuse reflectance spectroscopy system and its application to photo -functional devices

• Project/Area Number: 19750020
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Physical chemistry
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: FURUBE Akihiro National Institute of Advanced Industrial Science and Technology, 計測フロンティア研究部門, 主任研究員 (30357933)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,000,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2007: ¥1,700,000 (Direct Cost: ¥1,700,000)
• Keywords: 超高速分光 / 顕微鏡 / 光機能デバイス / 過渡吸収 / フェムト秒レーザー / 太陽電池 / 光触媒 / 光散乱体 / 顕徽鏡

Research Abstract

本研究では、実際の動作環境に限りなく近い状態、しかも光散乱の強い光機能デバイスにおける、光誘起高速反応を時間的・空間的に分解して測定するための、フェムト秒顕微拡散反射分光システムを作製し、それを光触媒および色素増感太陽電池デバイスに応用し、反応機構の解明を行った。光触媒粉末においては、系統的な実験により活性と電荷寿命の良い相関が得られた。色素増感太陽電池に関しては、実際のデバイスの過渡吸収測定に成功し、解放電圧条件での顕微過渡吸収測定を行い電解液が電子移動反応に及ぼす効果を明らかにできた。

Research Products

• [Journal Article] Hexylthiophene-functionalized carbazole dyes for efficient molecular photovoltaics: Tuning of solar-cell performance by structural modification (2008)
  • Author(s): Zhong-Sheng Wang, Nagatoshi Koumura, Yan Cui, Masabumi Takahashi, Hiroki Sekiguchi, Atsunori Mori, Toshitaka Kubo, Akihiro Furube, and Kohjiro Hara
  • Journal Title: Chemistry of Materials 20 Pages: 3993-4003
  • Peer Reviewed
• [Journal Article] Self-Trapping Limited Exciton Diffusion in a Monomeric Perylene Crystal as Revealed by Femtosecond Transient Absorption Microscopy (2008)
  • Author(s): Tomoaki Yago, Yoshiaki Tamaki, Akihiro Furube, and Ryuzi Katoh
  • Journal Title: Physical Chemistry Chemical Physics 10 Pages: 4435-4441
  • Peer Reviewed
• [Journal Article] Imaging of Exciton Absorption in Perylene Crystals by Femtosecond-Laser Scanning Microscopy (2008)
  • Author(s): Tomoaki Yago, Yoshiaki Tamaki, Akihiro Furube, Ryuzi Katoh
  • Journal Title: Japanese Journal of Applied Physics 47 Pages: 1400-1403
  • Peer Reviewed
• [Journal Article] Self-Trapping Limited Exciton Diffusion in a Monomeric Perylene Cryst al as Revealed by Femtosecond Transient Absorption Microscopy (2008)
  • Author(s): Tomoaki Yago, Yoshiaki Tamaki, Akihiro Furube, et al.
  • Journal Title: Physical Chemistry Chemical Physics 10 Pages: 4435-4441
  • Peer Reviewed
• [Journal Article] Analysis of the excited states of regioregular polythiophene P3HT (2008)
  • Author(s): Steffan Cook, Akihiro Furube and Ryuzi Katoh
  • Journal Title: Energy & Environmental Science 1 Pages: 294-299
  • Peer Reviewed
• [Journal Article] Ultrafast studies of charge generation in PCBM : P3HT blend films following excitation of the fullerene PCBM (2008)
  • Author(s): Steffan Cook, Ryuzi Katoh and Akihiro Furube
  • Journal Title: The Journal of Physical Chemistry C 103 Pages: 2547-2552
  • Peer Reviewed
• [Journal Article] 高感度過渡吸収分光法による酸化チタン光触媒反応機構の解明 (2007)
  • Author(s): 加藤隆二、古部昭広
  • Journal Title: 光化学 38 Pages: 166-173
  • NAID: 10020143977
  • Peer Reviewed
• [Journal Article] Ultrafast plasmon-induced electront transfer from gold into TiO_2 nanoparticles (2007)
  • Author(s): Akihiro Furube, et. al.
  • Journal Title: Joumal of The American Chemical Society 129 Pages: 14852-14853
  • Peer Reviewed
• [Journal Article] Imaging of Exciton Absorption in Perylene Crystals by Femtosecond-Laser Scanning Microscopy (2007)
  • Author(s): T.Yago, Y.Tamaki, A.Furube, et. al.
  • Journal Title: Japanese Journal of Applied Physics 47 Pages: 1400-1403
  • Peer Reviewed
• [Journal Article] 高感度過渡吸収分光法による酸化チタン光触媒反応機構の解明 (2007)
  • Author(s): 加藤 隆二、古部 昭広
  • Journal Title: 光化学 38 Pages: 166-173
  • NAID: 10020143977
• [Journal Article] Femtosecond visible-to-IR spectroscopy of TiO2 nanocrystalline films: Elucidation of the electron mobility before deep trapping
  • Author(s): Yoshiaki Tamaki, Kohjiro Hara, Ryuzi Katoh, M. Tachiya, Akihiro Furub
  • Journal Title: The Journal of Physical Chemistry C (accepted) (DOI: 10.1021/jp901833j)
  • Peer Reviewed
• [Presentation] 高機能化カルバゾールを用いた色素増感酸化チタン膜のピコ秒蛍光顕微鏡観察 (2009)
  • Author(s): 古部 昭広,原浩二郎,甲村 長利,加藤 隆二,Xiaotao Hao, Craig Lincoln, Trevor Smith
  • Organizer: 応用物理学関係連合講演会
  • Place of Presentation: 筑波大
  • Year and Date: 2009-04-01
• [Presentation] Ultrafast transient absorption study on electron injection process in dye-sensitized solar cells (2009)
  • Author(s): A. Furube, N. Koumura, K. Hara, R. Katoh, and M. Tachiya
  • Organizer: Solar'09
  • Place of Presentation: Luxor
  • Year and Date: 2009-01-11
• [Presentation] Time-Resolved Fluorescence Microscopy of Dye-Sensitized TiO2 Films with Hexylthiophene- Functionalized Carbazole Dyes (2008)
  • Author(s): Akihiro Furube, Kohjiro Hara, Nagatoshi Koumura, Ryuzi Katoh, Xiaotao Hao, Craig Lincoln, and Trevor Smith
  • Organizer: 8th International Conference on Nano-Molecular Electronics
  • Place of Presentation: 神戸
  • Year and Date: 2008-12-17
• [Presentation] Time-Resolved Fluorescence Microscopy of Dye-Sensitized TiO_2 Films with Hexylthiophene-Functionalized Carbazole Dyes (2008)
  • Author(s): Akihiro Furube, Kohjiro Hara, Nagatoshi Koumura, et al.
  • Organizer: 8th International Conference on Nano-Molecular Electronics
  • Place of Presentation: 神戸
  • Year and Date: 2008-12-17
• [Presentation] Transient Absorption Microscopic Study on Exciton Dynamics and Imaging in Organic Crystals (2008)
  • Author(s): Akihiro Furube, Tomoaki Yago, Yoshiaki Tamaki, and Ryuzi Katoh
  • Organizer: Korea-Japan Symposium on Frontier Photoscience
  • Place of Presentation: Hyundai Hotel (Gyeongju)
  • Year and Date: 2008-11-23
• [Presentation] Femtosecond Transient Absorption Microscopic Study on Exciton Dynamics and Imaging in Organic Crystals (2008)
  • Author(s): Akihiro Furube, et. al.
  • Organizer: Korea-Japan Symposium on Frontier Photoscience
  • Place of Presentation: Hyundai Hotel, Gyeongju, Korea
  • Year and Date: 2008-11-23
• [Presentation] Ultrafast photαihduced electron injection from functigllahzed carbazoledye to nanocrystalline TiO_2film (2008)
  • Author(s): Akihiro Furube, et. al.
  • Organizer: SPIE Photonics Asia
  • Place of Presentation: 北京
  • Year and Date: 2008-11-13
• [Presentation] 高機能化カルバゾール系有機色素分子から酸化チタンナノ粒子膜へのフェムト秒電子注入過程 (2008)
  • Author(s): 古部 昭広, 他
  • Organizer: 光化学討論会
  • Place of Presentation: 信州大学
  • Year and Date: 2008-09-26
• [Presentation] 過渡吸収分光法を用いた有機薄膜太陽電池における電荷分離過程の研究 (2008)
  • Author(s): Steffan COOK,古部 昭広,加藤 隆二
  • Organizer: 高分子討論会
  • Place of Presentation: 大阪市立大学
  • Year and Date: 2008-09-25
• [Presentation] フェムト秒分光による光触媒ナノ粒子における電子・正孔ダイナミクスの解明 (2008)
  • Author(s): 古部 昭広
  • Organizer: 触媒討論会
  • Place of Presentation: 北海道大学
  • Year and Date: 2008-09-19
• [Presentation] 拡散反射型フェムト秒過渡吸収分光法による色素増感太陽電池デバイスにおける電子注入過程の評価 (2008)
  • Author(s): 古部昭広、Luchao Du, Zhong-Sheng Wang, 甲村長利、原浩二郎、加藤隆二、立矢正典
  • Organizer: 光化学討論会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2008-09-11
• [Presentation] 太陽光利用環境デバイスのナノ構造における超高速電子移動過程の解明 (2008)
  • Author(s): 古部 昭広
  • Organizer: 環境・生体に関わる物理・化学の研究会
  • Place of Presentation: 琉球大学
  • Year and Date: 2008-07-05
• [Presentation] フェムト秒過渡吸収顕微鏡による有機導電性薄膜における電荷分離過程の不均一性評価 (2008)
  • Author(s): 古部昭広,佐藤知絵, Steffan Cook,加藤隆二
  • Organizer: 応用物理学関係連合講演会
  • Place of Presentation: 日本大学(船橋)
  • Year and Date: 2008-03-27
• [Presentation] 酸化チタン光触媒ナノ粒子における電子・正孔緩和過程のフェムトト秒過渡吸収分化 (2008)
  • Author(s): 古部 昭広, 他
  • Organizer: 第18回北海道大学触媒化学研究センター研究討論会
  • Place of Presentation: 北海道大学
  • Year and Date: 2008-01-24
• [Presentation] Transient ahsolptioll study on illterfacial electron transfbr at TiO_2 surface (2008)
  • Author(s): Akihiro Furube, et. al.
  • Organizer: 5th Asian Conference on Ultrafast Phenomena
  • Place of Presentation: National University of Singapore
  • Year and Date: 2008-01-08
• [Presentation] Femtosecond visible-to-IR spectroscopy of TiO2 nanocrystalline films: Dynamics of UV-generated charge carrier relaxation and electron-injection from gold nano-dots (2007)
  • Author(s): Akihiro Furube, Yoshiaki Tamaki, Kohjiro Hara, Ryuzi Katoh, and M. Tachiya
  • Organizer: SPIE Symposium on NanoScience + Engineering
  • Place of Presentation: San Diego Convention Center
  • Year and Date: 2007-08-28
• [Presentation] Femtosecond visible-to-IR spectroscopy of TiO_2 nanocrystalline.filins:Dynmics of UV-generated charge carrier relacation and electron-injection fron gold nano-dots (2007)
  • Author(s): Akihiro Furube, et. al.
  • Organizer: SPIE Sylmposium on NanoScience + Engineering
  • Place of Presentation: San Diego Convention Center
  • Year and Date: 2007-08-28
• [Book] 高分子表面・界面分析法の新展開 (第26 章 ナノデバイス界面での超高速電子移動の解明と制御) (p.359-371) (2009)
  • Author(s): 古部昭広
  • Publisher: シーエムシー出版
• [Book] 高分子表面・界面分析法の新展開(第26章) (2009)
  • Author(s): 古部昭広
  • Total Pages: 13
  • Publisher: シーエムシー出版
• [Remarks] ホームページ:
  • URL: http://staff.aist.go.jp/akihiro-furube/
• [Remarks]
  • URL: http://staff.aist.go.jp/akihiro-furube/furube.html