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Construction of nanoparticle immobilized substrates and evaluation of their photocurrent responses

Research Project

Project/Area Number 22K05136
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 34010:Inorganic/coordination chemistry-related
Research InstitutionYamagata University

Principal Investigator

kanaizuka katsuhiko  山形大学, 理学部, 教授 (50457438)

Co-Investigator(Kenkyū-buntansha) 崎山 博史  山形大学, 理学部, 教授 (20253396)
Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsナノ界面 / 光電流 / 酸化物 / 機能分子 / プラズモン / チタン / 近赤外 / 酸化物ナノ粒子 / フタロシアニン / 界面 / 錯体
Outline of Research at the Start

本研究では,紫外・可視・近赤外から開発の進んでいない「近赤外」に焦点を当て,プラズモンを示す酸化物の配列体を基板上に構築する。続いて、これらの酸化物配列体の近傍に金属錯体を化学結合や物理吸着など様々な方法で配置する。これにより、酸化物配列体の生み出す電場増強空間に金属錯体を配置することで,錯体の電子状態変化などの増強効果を検証する。

Outline of Final Research Achievements

Near-infrared (NIR) light can be used in a variety of fields, including energy conversion devices and medicines. However, there are only a limited number of compounds with NIR absorption, and research into their effective use remains unexplored. Previous research in our laboratory has reported the enhancement of visible light absorption in devices based on the combination of metal nanoparticles and functional molecules. In this study, we applied the system of the previous study to investigate the fabrication conditions of composite substrates of indium cubic tin oxide nanoparticles (ITO NPs), which have localized surface plasmon resonance (LSPR) absorption in the NIR region, and functional molecules, which absorbs NIR light, and the photocurrent of the fabricated substrates.

Academic Significance and Societal Importance of the Research Achievements

光分子素子においては,可視光と機能性分子の相互作用に関する研究がほとんどであり,近赤外光を有効利用する光機能界面の構築技術確立は未開拓となっている。そこで本研究では,近赤外フォトントラッピング効果を示す酸化物ナノ粒子に着目し,立方体型のチタニアナノ粒子と光吸収分子の複合界面を構築し、その光機能を明らかにした。近赤外光は太陽光の4割を占めるため,その利用技術の開発はクリーンエネルギー創生の観点から重要である。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (1 results)

All 2024

All Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Construction of ITO Nanoparticle Immobilized Substrates and Evaluation of Their Photocurrent Responses2024

    • Author(s)
      Mei Yamaguchi and Katsuhiko Kanaizuka
    • Organizer
      PRiME2024
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research

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Published: 2022-04-19   Modified: 2026-01-16  

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