Development of solid-state upconverters based on energy migration

2015 Fiscal Year Final Research Report

• Project/Area Number: 26810036
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic chemistry
• Research Institution: Kyushu University
• Principal Investigator: Yanai Nobuhiro 九州大学, 工学(系)研究科(研究院), 准教授 (90649740)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: フォトン・アップコンバージョン / エネルギーマイグレーション / 三重項 / 超分子 / 金属錯体骨格

Outline of Final Research Achievements

We developed a new methodology, triplet energy migration-based photon upconversion, instead of conventional molecular diffusion-based photon upconversion. The regular chromophore arrangements was achieved in metal-organic framework, and the triplet state of this acceptor assembly was sensitized by surface-modified sensitizer molecules. This new material design allowed the maximization of photon upconversion efficiency at very weak excitation intensity such as sunlight for the first time.

Free Research Field

機能性材料科学