Carbazole-functionalized V-shaped bis-coumarin derivatives as organic luminescent materials

被引：8

作者：

Li, Peiying ^{[1
]}

Su, Ruige ^{[2
]}

Zhang, Di ^{[1
]}

Han, Minghu ^{[1
]}

Zhao, Yuling ^{[2
]}

Ma, Lishan ^{[2
]}

Zhang, Hui ^{[1
]}

Yu, Tianzhi ^{[1
]}

机构：

[1] Lanzhou Jiaotong Univ, Minist Educ, Key Lab Optoelect Technol & Intelligent Control, Lanzhou 730070, Peoples R China

[2] Lanzhou Jiaotong Univ, Sch Chem & Chem Engn, Lanzhou 730070, Peoples R China

来源：

SYNTHETIC METALS | 2022年 / 287卷

基金：

中国国家自然科学基金;

关键词：

Synthesis; Bis-coumarin derivative; Carbazole; Photoluminescence; Electroluminescence; LIGHT-EMITTING-DIODES; RATIONAL DESIGN; EFFICIENCY; BLUE; MOLECULES; GREEN; DYE; OXADIAZOLE; EMITTERS; OLEDS;

D O I：

10.1016/j.synthmet.2022.117069

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two novel functionalized V-shaped bis-coumarin derivatives, namely CC-Cz and CC-2Cz, were successfully synthesized and characterized. The thermal stability, photophysical and electrochemical properties of the compounds were investigated systematically. By combining theoretical and experimental investigation, to reveal the structure-property relationships of different substituted coumarin-fused coumarins. These compounds possess good thermal stability with decomposition temperature over 360 ?, and exhibit strong green emission in solution and solid thin films. The solution-processed doped devices using the blend of PVK:PBD with the V-shaped bis-coumarin derivatives as emitting layers emit green emission with maximum external quantum efficiency (EQE(max)) of 2.20% for CC-2Cz , 1.98% for CC-Cz.

引用

页数：9

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