Two spiro[fluorene-9,8′-indolo[3,2,1-de]acridine] derivatives as host materials for green phosphorescent organic light-emitting diodes

被引：1

作者：

Chen, Yi ^{[1
]}

Wang, Bo ^{[2
]}

Huang, Jinhai ^{[3
]}

Wang, Lei ^{[2
]}

Su, Jianhua ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Inst Fine Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China

[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China

[3] Shanghai Taoe Chem Technol Co Ltd, Shanghai, Peoples R China

来源：

THIN SOLID FILMS | 2017年 / 642卷

关键词：

Green phosphorescent organic light-emitting diodes; Host materials; Spiro; Thermal stability; Indoloacridine; Benzofuran; Benzothiophene; HIGH-TRIPLET-ENERGY; BIPOLAR HOST; ELECTRON-TRANSPORT; THERMAL-STABILITY; EFFICIENT BLUE; HYBRIDS; MOLECULES;

D O I：

10.1016/j.tsf.2017.09.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two host materials based on spiro[fluorene-9,8'-indolo[3,2,1-de]acridine] derivatives were designed and synthesized by introducing the benzofuran/benzothiophene unit to the spiro [fluorene-9,8'-indolo[3,2,1-de]acridine] unit. The two host materials exhibited high triplet energy level (> 2.65 eV) and the benzofuran-substituted derivative presented suitable glass transition temperature (> 130 degrees C). Their electrochemical and photo-physical properties were also determined. The green phosphorescent organic light-emitting diodes based on the two host materials obtained electroluminescence performances with external quantum efficiencies of 14.3 +/- 0.1% and 11.9 +/- 0.1%, respectively.

引用

页码：96 / 102

页数：7

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