Influence of Shell Thickness on Luminescent Properties of Cu-Doped Zn-In-S/ZnS Core/Shell Quantum Dots WLEDs

被引：1
|
作者：
Wang Xiaoqi [1 ]
Wang Cong [1 ]
机构：
[1] Yingkou Inst Technol, Basic Dept, Yingkou 115014, Liaoning, Peoples R China
来源：
LASER & OPTOELECTRONICS PROGRESS | 2021年 / 58卷 / 17期
关键词：
optical devices; quantum dots; Cu-doped Zn-In-S/ZnS; WLED; light-emitting diodes; LIGHT-EMITTING-DIODES; EFFICIENT;
D O I：
10.3788/LOP202158.1723003
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, Cu-doped Zn-In-S/ZnS core/shell quantum dot (QD) white-light-emitting diodes (WLEDs) are prepared, and the influence of the shell thickness on their properties is investigated. With several groups of QD WLEDs, the QD ratio of green and orange light is different to measure the properties of the International Commission on illumination (CIE) color coordinates, color rendering index (CRI), correlated color temperature (CCT), and luminous efficiency (LE). It is found that the LE and CRI of thick Cu: Zn-In-S/ZnS core/shell QD WLEDs are higher than those of the thin Cu:Zn-In-S/ZnS core/shell QD WLEDs. Additionally, when the thickness of the shell increases, the stability of QDs is enhanced and the luminous efficiency is increased.
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页数：6
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