Investigation of stability and optical performance of quantum-dot-based LEDs with methyl-terminated-PDMS-based liquid-type packaging structure

被引：11

作者：

Li, Jiasheng ^{[1
,2
]}

Tang, Yong ^{[1
]}

Li, Zongtao ^{[1
,2
]}

Ding, Xinrui ^{[1
]}

Rao, Longshi ^{[1
]}

Yu, Binhai ^{[1
]}

机构：

[1] South China Univ Technol, Engn Res Ctr Green Mfg Energy Saving & New Energy, Guangzhou 510640, Guangdong, Peoples R China

[2] Foshan NationStar Optoelect Co Ltd, Foshan 528000, Peoples R China

来源：

OPTICS LETTERS | 2019年 / 44卷 / 01期

基金：

中国国家自然科学基金;

关键词：

LIGHT-EMITTING-DIODES;

D O I：

10.1364/OL.44.000090

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Although quantum dots (QDs) have a high quantum yield close to one in a solution, they exhibit low conversion efficiency in a solidification polymer matrix, which hampers the development of QD-based light-emitting diodes (LEDs) with high stability and optical performance. In this study, we proposed a methyl-terminated-polydimethylsiloxane(PDMS)-based liquid-type packaging structure (LPS) to improve stability and optical performance of QD-based LEDs. Compared with the traditional ethylene-terminated-PDMSbased solid-type packaging structure, the LPS with an optimized kinematic viscosity of 10000 m(2)/s can provide higher stability and optical performances for QD-based LEDs, including total radiant power and luminous flux. Consequently, the proposed effective and simple strategy has great potential for illumination and display applications. (C) 2018 Optical Society of America

引用

页码：90 / 93

页数：4

共 18 条

[1] (CdSe)ZnS core-shell quantum dots: Synthesis and characterization of a size series of highly luminescent nanocrystallites [J].