Ion Conductivity of Solid-State Materials under Vibrational Strong Coupling

2023 Fiscal Year Final Research Report

• Project/Area Number: 21H01899
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 32020:Functional solid state chemistry-related
• Research Institution: Hokkaido University
• Principal Investigator: Hirai Kenji 北海道大学, 電子科学研究所, 准教授 (10754400)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 金属有機構造体 / 柔粘性結晶 / 振動強結合

Outline of Final Research Achievements

on-conducting materials play a pivotal role in enhancing the energy efficiency of batteries, thereby making significant strides towards resolving energy challenges. Within an optical cavity, molecules engage in coherent exchange of photonic energy with a cavity mode, leading to vibrational strong coupling. This phenomenon alters the physical properties of molecules significantly. In this research, plastic crystals with proton and lithium conductivity were introduced into an optical cavity with the aim of subjecting them to vibrational strong coupling to enhance ionic conductivity. To assess the impact of vibrational strong coupling on ionic conductivity, impedance measurements were conducted under these conditions.

Free Research Field

光化学

Academic Significance and Societal Importance of the Research Achievements

イオン伝導体の進歩はエネルギー効率を向上させるため、携帯電子機器、電気自動車などのバッテリーの長寿命化に繋がる。このような観点からイオン伝導体の性能向上が求められている。本研究は、光共振器を用いることで、固体イオン伝導体の性能を変化させる方法を提案しており、エネルギー問題の解決に繋がる研究である。