Organic light-emitting diodes with improved hole-electron balance by using copper phthalocyanine/aromatic diamine multiple quantum wells

2002 ◽  
Vol 80 (15) ◽  
pp. 2628-2630 ◽  
Author(s):  
Yong Qiu ◽  
Yudi Gao ◽  
Peng Wei ◽  
Liduo Wang
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Copper Phthalocyanine ◽  
Organic Light Emitting Diodes ◽  
Multiple Quantum Wells ◽  
Aromatic Diamine ◽  
Multiple Quantum ◽  
Light Emitting ◽  
Electron Balance ◽  
Organic Light

Study on Injection Efficiency in InGaN/GaN Multiple Quantum Wells Blue Light Emitting Diodes

2008 ◽  
Vol 1 ◽  
pp. 021101 ◽  
Author(s):  
Lai Wang ◽  
Jiaxing Wang ◽  
Hongtao Li ◽  
Guangyi Xi ◽  
Yang Jiang ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Injection Efficiency ◽  
Light Emitting

Control of Barrier Width in Perovskite Multiple Quantum Wells for High Performance Green Light–Emitting Diodes

2018 ◽  
Vol 7 (3) ◽  
pp. 1801575 ◽  
Author(s):  
Maotao Yu ◽  
Chang Yi ◽  
Nana Wang ◽  
Liangdong Zhang ◽  
Renmeng Zou ◽  
...  
Keyword(s):  
Quantum Wells ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Green Light ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Barrier Width ◽  
Light Emitting

Two distinct carrier localization in green light-emitting diodes with InGaN/GaN multiple quantum wells

2014 ◽  
Vol 115 (8) ◽  
pp. 083112 ◽  
Author(s):  
Zhi Li ◽  
Junjie Kang ◽  
Bo Wei Wang ◽  
Hongjian Li ◽  
Yu Hsiang Weng ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Green Light ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Carrier Localization ◽  
Light Emitting

scholarly journals GaN-based ultraviolet light-emitting diodes with AlN/GaN/InGaN multiple quantum wells

2015 ◽  
Vol 23 (7) ◽  
pp. A337 ◽  
Author(s):  
Hung-Ming Chang ◽  
Wei-Chih Lai ◽  
Wei-Shou Chen ◽  
Shoou-Jinn Chang
Keyword(s):  
Quantum Wells ◽  
Ultraviolet Light ◽  
Light Emitting Diodes ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Light Emitting ◽  
Ultraviolet Light Emitting Diodes

The Emission Properties of Light Emitting Diodes using InGaN/AlGaN/GaN Multiple Quantum Wells

1998 ◽  
Vol 3 ◽  
Author(s):  
A. E. Yunovich ◽  
V. E. Kudryashov ◽  
A. N. Turkin ◽  
A. Kovalev ◽  
F. Manyakhin
Keyword(s):  
Quantum Wells ◽  
Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Multiple Quantum Wells ◽  
Luminescence Spectra ◽  
Multiple Quantum ◽  
Tunnel Current ◽  
High Quantum Efficiency ◽  
Light Emitting ◽  
Low Probability

Luminescence spectra of Light Emitting Diodes (LEDs) with Multiple Quantum Wells (MQWs) were studied at currents J = 0.15 μA - 150 mA. A high quantum efficiency at low J is caused by a low probability of the tunnel current J (which is maximum at Jm ≈ 0.5-1.0 mA). J(V) curves were measured in the range J= 10−12-10−1 A; at J > 10−3A they may be approximated by a sum of four parts: V= φk+ mkT·[ln(J/J0)+(J/J1)0.5] + J·Rs. The part V ~ (J/J1)0.5is the evidence of a double-injection into i-layers near MQWs. Their presence is confirmed by capacitance measurements. An overflow of carriers through the MQW causes a lower quantum efficiency at high J. A model of a 2D-density of states with exponential tails fits the spectra. The value of T in the active layer was estimated. A new band was detected at high J; it can be caused by non-uniformity of In content in MQWs.

The advantage of blue InGaN multiple quantum wells light-emitting diodes with p-AlInN electron blocking layer

2011 ◽  
Vol 20 (9) ◽  
pp. 098503 ◽  
Author(s):  
Tai-Ping Lu ◽  
Shu-Ti Li ◽  
Kang Zhang ◽  
Chao Liu ◽  
Guo-Wei Xiao ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Blocking Layer ◽  
Electron Blocking Layer ◽  
Light Emitting
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