Fabrication of Cooperative Multiple Plasmonic Structures Using Metal Nanoparticle-Grating and Their Organic Photo-electronic device Applications

2023 Fiscal Year Final Research Report

• Project/Area Number: 20H02601
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 29010:Applied physical properties-related
• Research Institution: Niigata University
• Principal Investigator: Baba Akira 新潟大学, 自然科学系, 教授 (80452077)
• Co-Investigator(Kenkyū-buntansha): 城内 紗千子 新潟大学, 自然科学系, 准教授 (20870760) ; L CHUTIPARN 新潟大学, 自然科学系, 助教 (90769316)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 表面プラズモン / 有機光・電子デバイス

Outline of Final Research Achievements

The purpose of this study is to create plasmonic structures in which localized plasmon, propagating plasmon, and quantum effects cooperate to produce remarkable photoelectric field enhancement phenomena, and to propose new organic optoelectronic devices with high efficiency and high sensitivity based on theoretical elucidation of the mechanism.
(1) Optimal findings in the placement of metallic nanostructures were obtained using FDTD simulations. (2) We have applied the luminescence enhancement properties obtained by placing gold quantum dots in a propagating surface plasmon-enhanced electric field to a sensor application. (3) We have applied a self-powered photoelectrochemical sensor for glucose detection based on the sensitization effect of localized surface plasmon excitation.

Free Research Field

有機エレクトロニクス

Academic Significance and Societal Importance of the Research Achievements

本研究は、伝搬型表面プラズモンと金属微粒子同士の複合局在表面プラズモンをも合わせたプラズモン協働現象による、これまでにない大きな光電場増強現象が得られる構造を見出し、この新たな現象を用いた種々の有機光・電子デバイスの設計・応用を行うもので学術的独自性と創造性がある提案である。本研究でナノ構造制御プラズモニック－金量子ドットシステムの有機光・電子デバイスへの応用について、基礎研究からデバイス応用研究までの一貫した研究の基盤を確立でき、有機光・電子デバイス分野の発展に寄与することは重要な意義があり、高感度センサ・高効率発電デバイスを始め波及効果が大きいと考える。