期刊
SCIENCE CHINA-CHEMISTRY
卷 63, 期 10, 页码 1435-1442出版社
SCIENCE PRESS
DOI: 10.1007/s11426-020-9814-7
关键词
photoluminescence; substituent effect; molecular packing; electronic coupling
资金
- National Natural Science Foundation of China [51673151, 51973162, 21875174, 21734007]
- Natural Science Foundation of Hubei Province [2017CFA002]
Bright emission of organic luminogens at aggregated state has attracted increasing attention for their potential applications in opto-electronic devices and bio-/chemo-sensors. In this article, upon the introduction of different substituents (Br, Ph and TPh) to the large conjugated core of 9-methyl-9H-dibenzo[a,c]carbazole (DBC) moiety, the resultant luminogens demonstrated PL quantum yields in solid state ranging from 4.81% to 47.39%. Through the systematic investigation of molecular packing, together with theory calculation, the strong intermolecular electronic coupling in the dimers is proved as the main factor to the bright emission in the solid state. The results afforded a new avenue to investigate the intrinsic relationship among the molecular structures, packing modes and emission properties.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据