Influence of Buckminsterfullerene Doping on Properties of Phosphorescent Homojunction Organic Light-Emitting Device

被引：0

作者：

Zhou Meng ^{[1
]}

Mu Zheng-Ming ^{[1
]}

Zheng Yu ^{[1
]}

Wang Cheng-Ming ^{[1
]}

Zhang Tian-Yu ^{[1
]}

机构：

[1] Jilin Univ, Coll Instrumentat & Elect Engn, Key Lab Geophys Explorat Equipment, Minist Educ, Changchun 130000, Jilin, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2018年 / 46卷 / 12期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Buckminsterfullerene; Homojunction; p-Type dopant; Organic light-emitting device; HOST MATERIAL; EFFICIENT; TRANSPORT;

D O I：

10.1016/S1872-2040(18)61131-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

By p-doping buckminsterfullerene (C60) into a bipolar host 2,7-bis(diphenylphos-phorryl)-9-[4-(N,N-dipheny-lamino)phenyl]-9-phenylfluorene, the device efficiency of the phosphorescent homojunction organic light-emitting device (HJOLED) was pronouncedly enhanced. A two-fold enhancement in luminous efficacy compared with nondoped or MoO3 doped HJOLEDs was observed by employing C60 as the p-dopant. The influence of C60 doping on the device performances of this HJOLED was investigated by carefully analyzing the J-V-L characteristics of HJOLEDs with different hole transporting layer. A white HJOLED was also successfully fabricated. The maximum brightness, current efficiency and power efficiency were 22700 cd m(-2), 12.2 cd A(-1) and 7.7 lm W, respectively. This device showed a warm EL spectra and the CIE coordinates was (0.41, 0.44) @ 10 V. Besides, this device manifested lower efficiency roll-off.

引用

页码：E1893 / E1897

页数：5

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