Top-emitting organic light-emitting diodes integrated with thermally evaporated scattering film for reducing angular dependence of emission spectra

被引：11

作者：

Wang, Weigao ^{[1
]}

Peng, Huiren ^{[1
]}

Wang, Sisi ^{[1
]}

Chen, Shuming ^{[1
]}

机构：

[1] South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Guangdong, Peoples R China

来源：

ORGANIC ELECTRONICS | 2015年 / 24卷

基金：

中国国家自然科学基金;

关键词：

Top-emitting OLEDs; Scattering film; Angular dependence; Color stability; COLOR STABILITY; ENHANCEMENT; EXTRACTION; DEVICES; LAYERS; CAVITY; OLEDS;

D O I：

10.1016/j.orgel.2015.05.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A scattering film is obtained by thermally evaporating tetraphenylethene (TPE) onto the substrate. The TPE molecules self-crystallize themselves as microsheet on reaching the substrate. The resultant TPE films exhibit strong light scattering effect because of the random distribution of the crystallized sheets. The scattering films, being able to be deposited by thermal evaporation, can thus integrate with top-emitting organic light-emitting diodes (OLEDs) directly. As a result, the top-emitting OLEDs exhibit reduced angular dependence of emission spectra; for example, the color coordinates is only slightly shifted from (0.2891, 0.6001) to (0.2735, 0.5617) when the viewing angle increases from 0 degrees to 80 degrees. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：195 / 199

页数：5

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