An Organic Molecule with Asymmetric Structure Exhibiting Aggregation-Induced Emission, Delayed Fluorescence, and Mechanoluminescence

被引：390

作者：

Xu, Shidang ^{[1
,2
]}

Liu, Tingting ^{[1
,2
]}

Mu, Yingxiao ^{[1
,2
]}

Wang, Yi-Fan ^{[3
]}

Chi, Zhenguo ^{[1
,2
]}

Lo, Chang-Cheng ^{[3
]}

Liu, Siwei ^{[1
,2
]}

Zhang, Yi ^{[1
,2
]}

Lien, Alan ^{[4
]}

Xu, Jiarui ^{[1
,2
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, PCFM Lab, Guangzhou 510275, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Sch Chem & Chem Engn, GD HPPC Lab, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

[3] Shenzhen China Star Optoelect Technol Co Ltd, Guangzhou, Guangdong, Peoples R China

[4] TCL Corp Res, Guangzhou, Guangdong, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 03期

基金：

中国国家自然科学基金;

关键词：

aggregation; fluorescence; luminescence; materials science; solid-state structures; LIGHT-EMITTING-DIODES; EFFICIENT; ELECTROLUMINESCENCE; NANOPARTICLES; CONVERSION;

D O I：

10.1002/anie.201409767

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Compounds displaying delayed fluorescence (DF), from severe concentration quenching, have limited applications as nondoped organic light-emitting diodes and material sciences. As a nondoped fluorescent emitter, aggregation-induced emission (AIE) materials show high emission efficiency in their aggregated states. Reported herein is an AIE-active, DF compound in which the molecular interaction is modulated, thereby promoting triplet harvesting in the solid state with a high photoluminescence quantum yield of 93.3%, which is the highest quantum yield, to the best of our knowledge, for long-lifetime emitters. Simultaneously, the compound with asymmetric molecular structure exhibited strong mechanoluminescence (ML) without pretreatment in the solid state, thus exploiting a design and synthetic strategy to integrate the features of DF, AIE, and ML into one compound.

引用

页码：874 / 878

页数：5

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