南京理工大学学报（自然科学版）2016，Vol.40Issue(4)：399-403,5.DOI:10.14177/j.cnki.32-1397n.2016.40.04.004
热激活延迟荧光材料的光致发光研究
Photoluminescence spectra of thermally activated delayed fluorescence emitter
摘要
Abstract
In order to understand the influence of molecular structure and molecular interaction on the light physical processes of the thermally activated delayed fluorescence emitter, photoluminescence spectroscopy of thermally activated delayed fluorescence( TADF) emitter,namely, 2,4,5,6-tetrakis(carbazol-9-yl)-1,3-dicyanobenzene(4CzIPN)and its derivative,2,3,5,6-tetrakis (3,6-diphenylcarbazol-9-yl )-1, 4-dicyanobenzene ( 4CzTPN-Ph ) are studied. In 4CzIPN film, the photoluminescence intensity increases unexpectedly when temperature increases at 280K, which is ascribed to be the thermally weakening of molecular interaction. On the contrary, no such phenomenon is observed in 4CzTPN-Ph film. The results indicate that the molecular structure can be modified to adjust to molecular interaction’s influence on photoluminescence processes, in order to enhance the efficiency of corresponding light emission diodes.关键词
热激活延迟荧光材料/光致发光强度/分子间相互作用/温度/分子结构Key words
thermally activated delayed fluorescence emitter/photoluminescence/molecular interaction/temperature/molecular structure分类
数理科学引用本文复制引用
张洋,王伟,陈伟,杨潇,李衡..热激活延迟荧光材料的光致发光研究[J].南京理工大学学报（自然科学版）,2016,40(4):399-403,5.基金项目
国家自然科学基金(61574078) （61574078）
