Photo-energy conversion with electronic potential gradient

• Project/Area Number: 25410086
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Functional solid state chemistry
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Imaoka Takane 東京工業大学, 資源化学研究所, 准教授 (80398635)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 電子移動 / 分子素子 / 自己組織化 / π共役高分子 / 金属錯体 / 電荷分離 / 光電変換 / デンドリマー / フェニルアゾメチン / ポルフィリン / エネルギー変換

Outline of Final Research Achievements

Electron transfer attenuation through the dendrimer architecture was increased with the generation number increment. It was first determined that the attenuation factors was different by the direction. This fact is in line with the idea that the electronic potential gradient significantly affect the electron transfer direction.
These dendrimers was deposited on a substrate by a spin-coating method. AFM observation confirmed highly regular and anisotropic surface structure at sub-micrometer scale.

Research Products

• [Journal Article] A Self-Assembling Dendritic Reactor: Versatile Formation of Characteristic Patterns with Nanoscale Dimension (2015)
  • Author(s): T. Imaoka, N. Bukeo, K. Yamamoto
  • Journal Title: Macromol. Rapid Commun. Volume: 36 Issue: 7 Pages: 616-620
  • DOI: 10.1002/marc.201400655
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A Potential Gradient along the Layer-by-Layer Architecture for Electron Transfer Rectification (2015)
  • Author(s): T. Imaoka, H. Kobayashi, M. Katsurayama, K. Yamamoto
  • Journal Title: Dalton Trans. Volume: 44 Issue: 34 Pages: 15116-15120
  • DOI: 10.1039/c5dt00788g
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A Resistive Switching Memory based on Size-controlled Gold 1nm-particles (2014)
  • Author(s): T. Imaoka, M. Fushimi, A. Kimoto, Y. Okamoto, K. Takanashi, K. Yamamoto
  • Journal Title: Chem. Lett. Volume: 43 Issue: 8 Pages: 1269-1271
  • DOI: 10.1246/cl.140254
  • NAID: 130004427117
  • Peer Reviewed
• [Journal Article] Deposition of the Monodispersed Pt Nanodots on a Substrate by Using the Pt Nanoparticle-Containing Dendrimer Micelle Aqueous Solution (2014)
  • Author(s): Isao Hirano, Takane Imaoka, Kimihisa Yamamoto
  • Journal Title: J. Inorg. Organomet. Polym. Volume: 24 Issue: 1 Pages: 214-218
  • DOI: 10.1007/s10904-013-9879-9
  • Peer Reviewed
• [Journal Article] Macromolecular semi-rigid nanocavities for cooperative recognition of specific large molecular shapes (2013)
  • Author(s): Takane Imaoka, Yuki Kawana, Takuto Kurokawa, Kimihisa Yamamoto
  • Journal Title: Nature Commun. Volume: 4 Issue: 1 Pages: 2581-2581
  • DOI: 10.1038/ncomms3581
  • Peer Reviewed
• [Journal Article] Extended Potential-gradient Architecture of a Phenylazomethine Dendrimer (2013)
  • Author(s): Takane Imaoka
  • Journal Title: Organic Letters Volume: 15 Issue: 8 Pages: 1810-1813
  • DOI: 10.1021/ol4003493
  • Peer Reviewed
• [Presentation] Molecular-shape Selectivity by Cavities of Rigid Dendrimers (2016)
  • Author(s): 加藤悠登, 神戸徹也, 今岡享稔, 山元公寿
  • Organizer: 日本化学会第96春季年会
  • Place of Presentation: 同志社大学 京田辺キャンパス
  • Year and Date: 2016-03-27
• [Presentation] Metastable platinum clusters acting as a superior catalyst (2015)
  • Author(s): T. Imaoka, K. Yamamoto
  • Organizer: Pacifichem2015
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 2015-12-17
  • Int'l Joint Research
• [Presentation] 剛直樹状高分子の内部空間を利用した触媒反応 (2015)
  • Author(s): 加藤悠登, 神戸徹也, 今岡享稔
  • Organizer: 第5回 CSJ化学フェスタ
  • Place of Presentation: タワーホール船堀
  • Year and Date: 2015-10-14
• [Presentation] 電子密度勾配を有するHead-to-Tail 型ベンズイミダゾールオリゴマーの創製 (2015)
  • Author(s): 雨宮 史, 今岡 享稔, 山元 公寿
  • Organizer: 第5回 CSJ化学フェスタ
  • Place of Presentation: タワーホール船堀
  • Year and Date: 2015-10-14
• [Presentation] 樹状高分子と金属錯体の融合による精密無機合成の新展開 (2015)
  • Author(s): 今岡享稔, 山元公寿
  • Organizer: 第64回高分子討論会
  • Place of Presentation: 東北大学 川内キャンパス
  • Year and Date: 2015-09-15
• [Presentation] Precise Synthesis of Monodisperse Subnanoparticles (2015)
  • Author(s): T. Imaoka
  • Organizer: The Third China-Japan Joint Symposium on Inorganic and Nanomaterial Science
  • Place of Presentation: Beijing, China
  • Year and Date: 2015-06-06
  • Int'l Joint Research / Invited
• [Presentation] 電子密度勾配を有するπ共役ポリベンズイミダゾールの創製 (2015)
  • Author(s): 雨宮 史, 今岡 享稔, 山元 公寿
  • Organizer: 第64回高分子年次大会
  • Place of Presentation: 札幌コンベンションセンター
  • Year and Date: 2015-05-27