Development of organic solid-state luminescent materials controllable based on two-way mechanism

2015 Fiscal Year Final Research Report

• Project/Area Number: 24550222
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Organic industrial materials
• Research Institution: The University of Tokyo
• Principal Investigator: MUTAI Toshiki 東京大学, 生産技術研究所, 助教 (80313112)
• Co-Investigator(Renkei-kenkyūsha): YOSHIKAWA Isao 東京大学, 生産技術研究所, 技術専門職員 (10401283)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 光物性 / 蛍光発光 / 有機固体 / 結晶多形 / ESIPT発光 / 計算化学 / イミダゾピリジン / 集積誘起発光AIE

Outline of Final Research Achievements

This research showed the validity of the new concept for controlling the solid-state ESIPT luminescence property based on the polymorphism of supramolecular assembly without changing chemical structure of compounds ("fine" control mechanism) by means of X-ray crystallographic analysis and quantum chemical calculation, in addition to the conventional synthetic modification of the electronic state of compounds ("coarse" control mechanism). Combination of the above two controlling mechanisms were confirmed to be useful for tuning the luminescence wavelength gradually and widely, which surely presented considerable potential leading to a valuable designing concept for developing novel organic luminescent materials.

Free Research Field

有機光機能化学