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Meso-hierarchy optical characterization

Planned Research

Project AreaMaterials Science of Meso-Hierarchy
Project/Area Number 23H04875
Research Category

Grant-in-Aid for Transformative Research Areas (A)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (II)
Research InstitutionInstitute of Science Tokyo

Principal Investigator

VACHA Martin  東京工業大学, 物質理工学院, 教授 (50361746)

Co-Investigator(Kenkyū-buntansha) 増尾 貞弘  関西学院大学, 生命環境学部, 教授 (80379073)
Project Period (FY) 2023-04-01 – 2028-03-31
Project Status Granted (Fiscal Year 2024)
Budget Amount *help
¥160,420,000 (Direct Cost: ¥123,400,000、Indirect Cost: ¥37,020,000)
Fiscal Year 2025: ¥29,380,000 (Direct Cost: ¥22,600,000、Indirect Cost: ¥6,780,000)
Fiscal Year 2024: ¥28,990,000 (Direct Cost: ¥22,300,000、Indirect Cost: ¥6,690,000)
Fiscal Year 2023: ¥41,600,000 (Direct Cost: ¥32,000,000、Indirect Cost: ¥9,600,000)
Keywords単一分子分光 / Single-molecule studies / Exciton transport
Outline of Research at the Start

超分子構造は、励起子の長距離輸送など、構造に特有の性質を示すことから注目されている。この超分子構造をさらに階層的に集積した「メゾヒエラルキー構造」においては、全く新しい光機能や特性が期待される。本研究では、超微弱光を検出可能な単一分子分光と原子間力顕微鏡を組み合わせた高度な顕微分光技術を駆使することにより、超分子構造からメゾヒエラルキー構造までの様々なスケールでの新規機能を精査する。最終目標は、メゾヒエラルキー構造における一重項および三重項励起子の長距離輸送を決定するキーファクターを解明し、それを完全に制御することである。

Outline of Annual Research Achievements

In the past year, research was carried out on exciton diffusion along individual nanorings formed from barbituric acid rosettes. Fluorescence anisotropy measurements together with numerical simulations showed that the exciton diffusion is limited to 2-4 nm along the ring, irrespective of its shape distortion. Further research was aimed at studying energy transport along supramolecular nanofibers self-assembled from tris(phenylisoxazolyl)benzene molecules and at the effect of surface plasmons on the transport. It was found that thick nanofibers function as waveguides for fluorescence which can transfer tens of micrometers. On substrates of gold nanohole arrays the surface plasmons cause strong leakage of the guided light, the spectrum of which is consistent with plasmon resonance wavelength. Apart from organic mesostructures, research was also carried out on nanocrystal formation and ion migration in lead halide perovskite metal-organic framework hierarchical composites where dynamic compositional heterogeneity due to local ionic environment was discovered. Further, with the goal of realizing long-distance exciton transfer between quantum dots (QDs) arranged using molecular assemblies as templates, the light-emitting behavior of the QDs at the single-QD level was evaluated. Also, using perylene bisimide as the templating molecule, QD array structure was successfully constructed and evaluated.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

The research is progressing according to the plan.

Strategy for Future Research Activity

This year, research will continue on exciton transport along thin supramolecular nanofibers of tris(phenylisoxazolyl)benzene molecules. Further, exciton transport will be explored on nanofibers self-assembled from the mechanochromic material based on luminescent the 9,10-bis(phenylethynyl)anthracene core, with the goal of mechanical manipulation of the transport. Apart from the organic mesostructures, nanoscale photoluminescence properties of 3D/2D interface of mesohierarchical structures formed from CsPbBr3/PEA2PbBr4 by post-growth assembly will be studied. Further, the correlation between the Bohr diameter and single photon generation behavior will be investigated. Also, regarding the 1D array structure of QDs, exciton diffusion will be evaluated and other QD types will be considered.

Report

(1 results)
  • 2023 Annual Research Report
  • Research Products

    (19 results)

All 2024 2023 Other

All Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 10 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] Impact of Ring-Closing on the Photophysical Properties of One-Dimensional π-Conjugated Molecular Aggregate2024

    • Author(s)
      Takahashi Sho、Matsumoto Takuma、Hollamby Martin J.、Miyasaka Hiroshi、Vacha Martin、Sotome Hikaru、Yagai Shiki
    • Journal Title

      Journal of the American Chemical Society

      Volume: 146 Issue: 3 Pages: 2089-2101

    • DOI

      10.1021/jacs.3c11407

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Resolving Multi-Asperity Contacts at the Nanoscale through Super-Resolution Fluorescence Imaging2024

    • Author(s)
      Demirkurt Begum、Petrova Dina、Sharma Dharmendar Kumar、Vacha Martin、Weber Bart、Bonn Daniel、Brouwer Albert M.
    • Journal Title

      The Journal of Physical Chemistry Letters

      Volume: 15 Issue: 7 Pages: 1936-1942

    • DOI

      10.1021/acs.jpclett.3c02799

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spectrally Selective Leakage of Light from Self-Assembled Supramolecular Nanofiber Waveguides Induced by Surface Plasmon Polaritons2024

    • Author(s)
      Tan Qiwen、Koishihara Nao、Omagari Shun、Hirao Takehiro、Haino Takeharu、Vacha Martin
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 128 Issue: 10 Pages: 4295-4302

    • DOI

      10.1021/acs.jpcc.3c08258

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Self-Assembly Behavior of Perylene Bisimide Derivatives on a Perovskite Nanocrystal Surface2024

    • Author(s)
      Kubo Naoki、Yamauchi Mitsuaki、Yamada Hiroko、Masuo Sadahiro
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 128 Issue: 11 Pages: 4648-4654

    • DOI

      10.1021/acs.jpcc.3c08420

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous Force and Fluorescence Spectroscopy on Single Chains of Polyfluorene: Effect of Intra-Chain Aggregate Coupling2023

    • Author(s)
      Nakamura Tomonori、Omagari Shun、Liang Xiaobin、Tan Qiwen、Nakajima Ken、Vacha Martin
    • Journal Title

      ACS Nano

      Volume: 17 Issue: 9 Pages: 8074-8082

    • DOI

      10.1021/acsnano.2c09773

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Air-stable mixed cation lead halide perovskite films and microscopic study of their degradation process2023

    • Author(s)
      Agarwal Anubha、Omagari Shun、Vacha Martin
    • Journal Title

      Nanoscale

      Volume: 15 Issue: 25 Pages: 10642-10650

    • DOI

      10.1039/d3nr02003g

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suppression of blinking in single CsPbBr3 perovskite nanocrystals through surface ligand exchange2023

    • Author(s)
      Takagi Toranosuke、Omagari Shun、Vacha Martin
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 25 Issue: 28 Pages: 19004-19012

    • DOI

      10.1039/d3cp01844j

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In Situ Monitoring of Nanocrystal Formation and Ion Migration in Lead Halide Perovskite Metal?Organic Framework Composites2023

    • Author(s)
      Wu Xiayan、Omagari Shun、Gao Jinwei、Vacha Martin
    • Journal Title

      Advanced Optical Materials

      Volume: 12 Issue: 3 Pages: 2301479-2301479

    • DOI

      10.1002/adom.202301479

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] One‐Dimensionally Arranged Quantum‐Dot Superstructures Guided by a Supramolecular Polymer Template2023

    • Author(s)
      Yamauchi Mitsuaki、Nakatsukasa Kanako、Kubo Naoki、Yamada Hiroko、Masuo Sadahiro
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 63 Issue: 1

    • DOI

      10.1002/anie.202314329

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Single-Photon Emission from Organic Dye Molecules Adsorbed on a Quantum Dot via Energy Transfer2023

    • Author(s)
      Yoshioka Miyu、Yamauchi Mitsuaki、Tamai Naoto、Masuo Sadahiro
    • Journal Title

      Nano Letters

      Volume: 23 Issue: 24 Pages: 11548-11554

    • DOI

      10.1021/acs.nanolett.3c03279

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Presentation] Controlling Heterostructures Composed of a Perylene Bisimide Derivative and a Perovskite Nanocrystal2024

    • Author(s)
      Naoki Kubo, Mitsuaki Yamauchi, Sadahiro Masuo
    • Organizer
      日本化学会第104春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 量子ドット-有機分子系メゾヒエラルキー構造の構築2024

    • Author(s)
      増尾貞弘
    • Organizer
      日本化学会第104春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Nanoscale photophysical properties and real-time in situ dynamics of halide perovskite films and nanocrystals2023

    • Author(s)
      Martin Vacha
    • Organizer
      31st International Conference on Photochemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nanoscale spectroscopy of halide perovskite films, nanocrystals and related systems2023

    • Author(s)
      Martin Vacha
    • Organizer
      12th Asian Photochemistry Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Construction of Heterogeneous Superlattice Using a Perylene Bisimide Derivative and a Perovskite Nanocrystal2023

    • Author(s)
      Naoki Kubo, Mitsuaki Yamauchi, Sadahiro Masuo
    • Organizer
      36th International Microprocesses and Nanotechnology Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ペロブスカイトナノ結晶に生成する多励起子の有効活用に向けて2023

    • Author(s)
      増尾貞弘
    • Organizer
      第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 極性アゾベンゼンにおける凝集誘起発光挙動の制御2023

    • Author(s)
      町田恵利子、山内光陽、増尾貞弘
    • Organizer
      2023年光化学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Correlation between Single-Photon Emission and Size of Cesium Lead Bromide Perovskite Nanocrystals2023

    • Author(s)
      Sadahiro Masuo, Hina Igarashi, Mitsuaki Yamauchi
    • Organizer
      31st International Conference on Photochemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Remarks] Vacha研究室

    • URL

      http://vacha.mat.mac.titech.ac.jp/

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2023-04-13   Modified: 2025-04-17  

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