Inverted quantum dot light-emitting diodes with conductive interlayers of zirconium acetylacetonate

2019 ◽  
Vol 7 (11) ◽  
pp. 3154-3159 ◽  
Author(s):  
Yifei Li ◽  
Xingliang Dai ◽  
Desui Chen ◽  
Yuxun Ye ◽  
Yuan Gao ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Work Function ◽  
Light Emitting Diodes ◽  
Metal Chelate ◽  
Light Emitting ◽  
New Type

Zirconium acetylacetonate, a low work function and transparent metal chelate, is demonstrated to be a new type of interlayer material ideal for QLEDs.

High‐Performance Quantum‐Dot Light‐Emitting Diodes Using NiO x Hole‐Injection Layers with a High and Stable Work Function

2019 ◽  
Vol 30 (5) ◽  
pp. 1907265 ◽  
Author(s):  
Jian Lin ◽  
Xingliang Dai ◽  
Xiaoyong Liang ◽  
Desui Chen ◽  
Xuerong Zheng ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Work Function ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Hole Injection ◽  
Light Emitting

MoO3-induced oxidation doping of PEDOT:PSS for high performance full-solution-processed inverted quantum-dot light emitting diodes

2017 ◽  
Vol 5 (40) ◽  
pp. 10555-10561 ◽  
Author(s):  
Min-Hsuan Lee ◽  
Lixiang Chen ◽  
Ning Li ◽  
Furong Zhu
Keyword(s):  
Quantum Dot ◽  
Work Function ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Luminous Efficiency ◽  
Solution Processed ◽  
Light Emitting ◽  
Full Solution ◽  
Process Compatibility

MoO3-induced oxidation in PEDOT:PSS hole contact enables improving its conductivity, work function and process compatibility for application in solution-processed transparent QD-LEDs, attaining a maximum luminous efficiency of 1.39 cd A−1and a transparency of >70%.

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

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

scholarly journals Unravelling the electron injection/transport mechanism in organic light-emitting diodes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tsubasa Sasaki ◽  
Munehiro Hasegawa ◽  
Kaito Inagaki ◽  
Hirokazu Ito ◽  
Kazuma Suzuki ◽  
...  
Keyword(s):  
Work Function ◽  
Transport Mechanism ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Electron Injection ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Materials Used

AbstractAlthough significant progress has been made in the development of light-emitting materials for organic light-emitting diodes along with the elucidation of emission mechanisms, the electron injection/transport mechanism remains unclear, and the materials used for electron injection/transport have been basically unchanged for more than 20 years. Here, we unravelled the electron injection/transport mechanism by tuning the work function near the cathode to about 2.0 eV using a superbase. This extremely low-work function cathode allows direct electron injection into various materials, and it was found that organic materials can transport electrons independently of their molecular structure. On the basis of these findings, we have realised a simply structured blue organic light-emitting diode with an operational lifetime of more than 1,000,000 hours. Unravelling the electron injection/transport mechanism, as reported in this paper, not only greatly increases the choice of materials to be used for devices, but also allows simple device structures.

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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