• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Developments of super resolution femtosecond transient absorption microscopy and application for thin film solar cells

Research Project

Project/Area Number 17K14084
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Nanomaterials chemistry
Research InstitutionKwansei Gakuin University

Principal Investigator

katayama tetsuro  関西学院大学, 理工学部, 助教 (80592360)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywords時間分解分光 / 顕微過渡吸収 / 光電変換過程 / 顕微過渡吸収測定法 / 超解像 / 構造化照明 / 光化学 / 物理化学 / 顕微分光 / 超解像技術
Outline of Final Research Achievements

In this study, transient absorption spectroscopy combined with super-resolution techniques to overcome heterogeneity is used as a reaction factor for charge trapping and photobleaching in π-conjugated polymers with phase separation structure of bulk heterojunction layer of 100 nm or less.

Academic Significance and Societal Importance of the Research Achievements

電子受容体分子と電子供与体分子が数十nm程度のサイズで不均一に相分離したバルクヘテロ構造を持つ有機系太陽電池では、実用化の一つの壁といわれた10%を超える光電変換効率が報告されているが、いまだ実用化に至らず、光耐久性の問題と大面積化に伴う光電変換効率の低下の問題を抱えている。その本質的な原因となる化学反応過程は試料の不均一性により明らかでなく、光劣化や大面積化に伴う光電変換効率の低下を抑えるような合理的分子設計指針は提出されていない。本研究はこの不均一性を克服する超解像分光法により光耐久性と大面積化に伴う光電変換効率の低下の問題を解決することを目的とし、超解像過渡吸収顕微鏡の装置開発を行った。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Unravelling the Ultrafast Exciton Relaxation and Hidden Energy State In CH3NH3PbBr3 Nanoparticles2018

    • Author(s)
      Tetsuro Katayama, Harunobu Suenaga, Tomoki Okuhata, Sadahiro Masuo and Naoto Tamai
    • Journal Title

      J. Phys. Chem. C

      Volume: 122 Issue: 9 Pages: 5209-5214

    • DOI

      10.1021/acs.jpcc.8b01051

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quasi-Type II Carrier Distribution in CdSe/CdS Core/Shell Quantum Dots with Type I Band Alignment2018

    • Author(s)
      Li Wang, Kouhei Nonaka, Tomoki Okuhata, Tetsuro Katayama, and Naoto Tamai
    • Journal Title

      J. Phys. Chem. C

      Volume: 122 Issue: 22 Pages: 12038-12046

    • DOI

      10.1021/acs.jpcc.7b11684

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Femtosecond excited-state dynamics of fullerene-C60 nanoparticles in water2018

    • Author(s)
      Ishibashi Yukihide、Arinishi Miya、Katayama Tetsuro、Miyasaka Hiroshi、Asahi Tsuyoshi
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 20 Issue: 2 Pages: 958-966

    • DOI

      10.1039/c7cp06746a

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unravelling the Ultrafast Exciton Relaxation and Hidden Energy State In CH3NH3PbBr3 Nanoparticles2018

    • Author(s)
      Tetsuro Katayama, Harunobu Suenaga, Tomoki Okuhata, Sadahiro Masuo and Naoto Tamai
    • Journal Title

      J. Chem. Phys. C

      Volume: 122 Pages: 5209-5214

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] フェムト秒顕微過渡吸収測定法による有機-無機ペロブスカイト結晶の非線形発光ダイナミクスの観測2018

    • Author(s)
      片山哲郎、玉井尚登
    • Organizer
      第12回分子科学討論会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Direct observation of carrier dynamics in an organic-inorganic perovskite crystal by femtosecond transient absorption microscopy2018

    • Author(s)
      Tetsuro Katayama, Naoto Tamai
    • Organizer
      27th IUPAC on Photochemistry
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フェムト秒顕微過渡吸収測定法を用いた有機-無機ペロブスカイト結晶における非線形発光機構の解明2018

    • Author(s)
      片山哲郎,末永晴信,玉井尚登
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2018 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi