Monomer-mixed hole transport layers for improving hole injection of quantum dot light-emitting diodes

被引：0
|
作者：
Kim, Yiseul [1 ,2 ]
Park, Hwaeun [1 ,2 ]
Yoon, Jinsu [1 ,2 ]
Yoon, Hyungsoo [1 ,2 ]
Jeong, Sujin [1 ,2 ]
Kim, Dahyun [1 ,2 ]
Hong, Yongtaek [1 ,2 ]
机构：
[1] Seoul Natl Univ, Dept Elect & Comp Engn, 1 Gwanak Ro, Seoul 08826, South Korea
[2] Seoul Natl Univ, Interuniv Semicond Res Ctr ISRC, 1 Gwanak Ro, Seoul 08826, South Korea
来源：
OPTICS EXPRESS | 2023年 / 31卷 / 13期
关键词：
HIGH-EFFICIENCY; CHARGE-INJECTION; PERFORMANCE; BALANCE; LEDS;
D O I：
10.1364/OE.493134
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Quantum-dot light-emitting diodes (QLEDs) are promising components for next generation displays and related applications. However, their performance is critically limited by inherent hole-injection barrier caused by deep highest-occupied molecular orbital levels of quantum dots. Herein, we present an effective method for enhancing the performance of QLEDs by incorporating a monomer (TCTA or mCP) into hole-transport layers (HTL). The impact of different monomer concentrations on the characteristics of QLEDs were investigated. The results indicate that sufficient monomer concentrations improve the current efficiency and power efficiency. The increased hole current using monomer-mixed HTL suggests that our method holds considerable potential for high-performance QLEDs. & COPY; 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码：20730 / 20739
页数：10
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