Bright CdSe/CdS Quantum Dot Light-Emitting Diodes with Modulated Carrier Dynamics via the Local Kirchhoff Law

2021 ◽  
Author(s):  
Hongyue Wang ◽  
Yangyang Guo ◽  
Hongxing Hao ◽  
Hongtao Bian ◽  
Herve Aubin ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Carrier Dynamics ◽  
Light Emitting ◽  
Cds Quantum Dot

scholarly journals Modelling charge transport and electro-optical characteristics of quantum dot light-emitting diodes

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Sung-Min Jung ◽  
Tae Hoon Lee ◽  
Sang Yun Bang ◽  
Soo Deok Han ◽  
Dong-Wook Shin ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Charge Carrier ◽  
Charge Transport ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Carrier Dynamics ◽  
Computational Method ◽  
Optical Characteristics ◽  
Light Emitting ◽  
Charge Carrier Dynamics

AbstractsQuantum dot light-emitting diodes (QD-LEDs) are considered as competitive candidate for next-generation displays or lightings. Recent advances in the synthesis of core/shell quantum dots (QDs) and tailoring procedures for achieving their high quantum yield have facilitated the emergence of high-performance QD-LEDs. Meanwhile, the charge-carrier dynamics in QD-LED devices, which constitutes the remaining core research area for further improvement of QD-LEDs, is, however, poorly understood yet. Here, we propose a charge transport model in which the charge-carrier dynamics in QD-LEDs are comprehensively described by computer simulations. The charge-carrier injection is modelled by the carrier-capturing process, while the effect of electric fields at their interfaces is considered. The simulated electro-optical characteristics of QD-LEDs, such as the luminance, current density and external quantum efficiency (EQE) curves with varying voltages, show excellent agreement with experiments. Therefore, our computational method proposed here provides a useful means for designing and optimising high-performance QD-LED devices.

Efficient CdSe/CdS Quantum Dot Light-Emitting Diodes Using a Thermally Polymerized Hole Transport Layer

Nano Letters ◽  
2006 ◽  
Vol 6 (3) ◽  
pp. 463-467 ◽  
Author(s):  
Jialong Zhao ◽  
Julie A. Bardecker ◽  
Andrea M. Munro ◽  
Michelle S. Liu ◽  
Yuhua Niu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Light Emitting ◽  
Cds Quantum Dot

Identifying the Surface Charges and their Impact on Carrier Dynamics in Quantum‐Dot Light‐Emitting Diodes by Impedance Spectroscopy

2021 ◽  
pp. 2100389
Author(s):  
Zhenghui Wu ◽  
Pai Liu ◽  
Xiangwei Qu ◽  
Jingrui Ma ◽  
Wenbo Liu ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Carrier Dynamics ◽  
Surface Charges ◽  
Light Emitting

Mechanisms of operation in quantum-dot light-emitting diodes

2019 ◽  
pp. 947
Author(s):  
Shoichi sano ◽  
Takashi Nagase ◽  
Takashi Kobayashi ◽  
Hiroyoshi Naito
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting

Enhanced Operational Stability of Quantum Dot based Light-Emitting Diodes by Improving Charge Injection Balance

2019 ◽  
pp. 886
Author(s):  
Seunghyun Rhee ◽  
Jun Hyuk Chang ◽  
Donghyo Hahm ◽  
Kyunghwan Kim ◽  
Hak June Lee ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Charge Injection ◽  
Operational Stability ◽  
Light Emitting

scholarly journals On the degradation mechanisms of quantum-dot light-emitting diodes

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Song Chen ◽  
Weiran Cao ◽  
Taili Liu ◽  
Sai-Wing Tsang ◽  
Yixing Yang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Degradation Mechanisms ◽  
Light Emitting

Enhanced Performance of Pixelated Quantum Dot Light‐Emitting Diodes by Inkjet Printing of Quantum Dot–Polymer Composites

2021 ◽  
pp. 2002129
Author(s):  
Heebum Roh ◽  
Donghyun Ko ◽  
Dong Yeol Shin ◽  
Jun Hyuk Chang ◽  
Donghyo Hahm ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Polymer Composites ◽  
Inkjet Printing ◽  
Light Emitting Diodes ◽  
Light Emitting
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