南方科技大学知识苑(SUSTech KC): Over 32.5% Efficient Top-Emitting Quantum-Dot LEDs with Angular-Independent Emission

题名	Over 32.5% Efficient Top-Emitting Quantum-Dot LEDs with Angular-Independent Emission
作者	Shi, Liangliang; Chen, Shuming
通讯作者	Chen, Shuming
发表日期	2022-06-01
DOI	10.1021/acsami.2c06670
发表期刊	ACS Applied Materials & Interfaces 影响因子和分区
ISSN	1944-8244
EISSN	1944-8252
卷号	14页码:30039-30045
摘要	Top-emitting quantum-dot light-emitting diodes (TQLEDs) with light emitted from the top semitransparent electrodes can improve the aperture ratio, efficiency, and color saturation of displays. However, because of the microcavity effect induced by the top semitransparent electrodes, the devices usually exhibit angular-dependent emission, which is unfavorable for display applications. In this study, highly transparent and conductive indium zinc oxide (IZO) is used as the top electrode to reduce the microcavity effect, thereby improving the angular color stability. By further applying a nanosphere scattering layer on the IZO top electrode, the trapped light is greatly extracted, and thus, the external quantum efficiencies (EQEs) are remarkably improved by 35, 50, and 133% for the red, green, and blue devices, respectively. The champion red TQLEDs exhibit a record EQE of 32.5% with angular-independent color emission. The demonstrated TQLEDs with high efficiency, high color stability, and a high aperture ratio could be the ideal candidates for QLED displays.
关键词	quantum-dot light-emitting diodes top emission outcoupling angularly dependent emission
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	National Natural Science Foundation of China[62174075] ; Shenzhen Science and Technology Program[JCYJ20210324105400002] ; Guangdong University Research Program[2020ZDZX3062]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000820710800001
出版者	AMER CHEMICAL SOC
EI入藏号	20223012400008
EI主题词	Color ; Display devices ; II-VI semiconductors ; Microcavities ; Nanocrystals ; Organic light emitting diodes (OLED) ; Quantum efficiency ; Semiconductor quantum dots ; Zinc oxide
EI分类号	Semiconducting Materials:712.1 ; Electronic Components and Tubes:714 ; Semiconductor Devices and Integrated Circuits:714.2 ; Computer Peripheral Equipment:722.2 ; Light/Optics:741.1 ; Nanotechnology:761 ; Inorganic Compounds:804.2 ; Quantum Theory; Quantum Mechanics:931.4 ; Crystalline Solids:933.1
来源库	Web of Science
引用统计	被引频次[WOS]：27
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/353375
专题	工学院_电子与电气工程系
作者单位	Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
第一作者单位	电子与电气工程系
通讯作者单位	电子与电气工程系
第一作者的第一单位	电子与电气工程系
推荐引用方式 GB/T 7714	Shi, Liangliang,Chen, Shuming. Over 32.5% Efficient Top-Emitting Quantum-Dot LEDs with Angular-Independent Emission[J]. ACS Applied Materials & Interfaces,2022,14:30039-30045.
APA	Shi, Liangliang,&Chen, Shuming.(2022).Over 32.5% Efficient Top-Emitting Quantum-Dot LEDs with Angular-Independent Emission.ACS Applied Materials & Interfaces,14,30039-30045.
MLA	Shi, Liangliang,et al."Over 32.5% Efficient Top-Emitting Quantum-Dot LEDs with Angular-Independent Emission".ACS Applied Materials & Interfaces 14(2022):30039-30045.