Thermal behavior and carrier injection of GaAs/GaP quantum dots light emitting diodes

2017 ◽  
Vol 110 (9) ◽  
pp. 091101 ◽  
Author(s):  
Christian Golz ◽  
Shabnam Dadgostar ◽  
W. Ted Masselink ◽  
Fariba Hatami
Keyword(s):  
Quantum Dots ◽  
Thermal Behavior ◽  
Light Emitting Diodes ◽  
Carrier Injection ◽  
Light Emitting

scholarly journals Selective carrier injection into patterned arrays of pyramidal quantum dots for entangled photon light-emitting diodes

2016 ◽  
Vol 10 (12) ◽  
pp. 782-787 ◽  
Author(s):  
T. H. Chung ◽  
G. Juska ◽  
S. T. Moroni ◽  
A. Pescaglini ◽  
A. Gocalinska ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diodes ◽  
Carrier Injection ◽  
Light Emitting

Graded synthetic approach for the fabrication of nanocrystal quantum dots for enhanced carrier injection in light-emitting diodes

2013 ◽  
Vol 24 (50) ◽  
pp. 505601 ◽  
Author(s):  
Kyungnam Kim ◽  
Chul Jong Han ◽  
Yun Chang Park ◽  
Isnaeni ◽  
Yong-Hoon Cho ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diodes ◽  
Synthetic Approach ◽  
Carrier Injection ◽  
Light Emitting ◽  
Nanocrystal Quantum Dots

Injecting Inter-Layers and the Built-in Potential of Blue Polymer Light-Emitting Diodes

2000 ◽  
Vol 660 ◽  
Author(s):  
Thomas M. Brown ◽  
Ian S. Millard ◽  
David J. Lacey ◽  
Jeremy H. Burroughes ◽  
Richard H. Friend ◽  
...  
Keyword(s):  
Indium Tin Oxide ◽  
Light Emitting Diodes ◽  
Basic Structure ◽  
Thin Layers ◽  
Carrier Injection ◽  
Semiconducting Polymer ◽  
Light Emitting ◽  
Physical Mechanisms ◽  
Organic Solid ◽  
Polymer Light Emitting Diodes

ABSTRACTThe semiconducting-polymer/injecting-electrode heterojunction plays a crucial part in the operation of organic solid state devices. In polymer light-emitting diodes (LEDs), a common fundamental structure employed is Indium-Tin-Oxide/Polymer/Al. However, in order to fabricate efficient devices, alterations to this basic structure have to be carried out. The insertion of thin layers, between the electrodes and the emitting polymer, has been shown to greatly enhance LED performance, although the physical mechanisms underlying this effect remain unclear. Here, we use electro-absorption measurements of the built-in potential to monitor shifts in the barrier height at the electrode/polymer interface. We demonstrate that the main advantage brought about by inter-layers, such as poly(ethylenedioxythiophene)/poly(styrene sulphonic acid) (PEDOT:PSS) at the anode and Ca, LiF and CsF at the cathode, is a marked reduction of the barrier to carrier injection. The electro- absorption results also correlate with the electroluminescent characteristics of the LEDs.

Surface Organic Ligands-Passivated Quantum Dots: Toward High-Performance Light-Emitting Diodes with Long Lifetime

2021 ◽  
Author(s):  
Lishuang Wang ◽  
Ying Lv ◽  
Jie Lin ◽  
Jialong Zhao ◽  
Xingyuan Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Ligands ◽  
Colloidal Quantum Dots ◽  
Core Shell ◽  
Light Emitting ◽  
Long Lifetime

For quantum dots light-emitting diodes (QLEDs), typical colloidal quantum dots (QDs) are usually composed of a core/shell heterostructure which is covered with organic ligands as surface passivated materials to confine...

53% Efficient Red Emissive Carbon Quantum Dots for High Color Rendering and Stable Warm White‐Light‐Emitting Diodes

2017 ◽  
Vol 29 (37) ◽  
pp. 1702910 ◽  
Author(s):  
Zifei Wang ◽  
Fanglong Yuan ◽  
Xiaohong Li ◽  
Yunchao Li ◽  
Haizheng Zhong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diodes ◽  
Carbon Quantum Dots ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes ◽  
Color Rendering

65‐3: Quantum Dot Light‐emitting Diodes with High Color Purity RGB Cadmium‐Free Quantum Dots

2021 ◽  
Vol 52 (1) ◽  
pp. 953-956
Author(s):  
Tatsuya Ryowa ◽  
Yusuke Sakakibara ◽  
Tadashi Kobashi ◽  
Keisuke Kitano ◽  
Masaya Ueda ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Color Purity ◽  
Light Emitting ◽  
High Color Purity

scholarly journals Near-infrared lead chalcogenide quantum dots: Synthesis and applications in light emitting diodes

2019 ◽  
Vol 28 (12) ◽  
pp. 128504 ◽  
Author(s):  
Haochen Liu ◽  
Huaying Zhong ◽  
Fankai Zheng ◽  
Yue Xie ◽  
Depeng Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Light Emitting Diodes ◽  
Lead Chalcogenide ◽  
Light Emitting
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