Barrier effect on hole transport and carrier distribution in InGaN∕GaN multiple quantum well visible light-emitting diodes

2008 ◽  
Vol 93 (2) ◽  
pp. 021102 ◽  
Author(s):  
J. P. Liu ◽  
J.-H. Ryou ◽  
R. D. Dupuis ◽  
J. Han ◽  
G. D. Shen ◽  
...  
Keyword(s):  
Quantum Well ◽  
Visible Light ◽  
Light Emitting Diodes ◽  
Multiple Quantum Well ◽  
Hole Transport ◽  
Multiple Quantum ◽  
Barrier Effect ◽  
Carrier Distribution ◽  
Light Emitting

Carrier distribution in (0001)InGaN∕GaN multiple quantum well light-emitting diodes

2008 ◽  
Vol 92 (5) ◽  
pp. 053502 ◽  
Author(s):  
Aurélien David ◽  
Michael J. Grundmann ◽  
John F. Kaeding ◽  
Nathan F. Gardner ◽  
Theodoros G. Mihopoulos ◽  
...  
Keyword(s):  
Quantum Well ◽  
Light Emitting Diodes ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
Carrier Distribution ◽  
Light Emitting

Carrier distribution in InGaN/GaN tricolor multiple quantum well light emitting diodes

2009 ◽  
Vol 95 (15) ◽  
pp. 151103 ◽  
Author(s):  
R. Charash ◽  
P. P. Maaskant ◽  
L. Lewis ◽  
C. McAleese ◽  
M. J. Kappers ◽  
...  
Keyword(s):  
Quantum Well ◽  
Light Emitting Diodes ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
Carrier Distribution ◽  
Light Emitting

Luminescence distribution and hole transport in asymmetric InGaN multiple-quantum well light-emitting diodes

2010 ◽  
Vol 31 (9) ◽  
pp. 094009
Author(s):  
Ji Xiaoli ◽  
Yang Fuhua ◽  
Wang Junxi ◽  
Duan Ruifei ◽  
Ding Kai ◽  
...  
Keyword(s):  
Quantum Well ◽  
Light Emitting Diodes ◽  
Multiple Quantum Well ◽  
Hole Transport ◽  
Multiple Quantum ◽  
Light Emitting

scholarly journals Enhanced hole transport in InGaN/GaN multiple quantum well light-emitting diodes with a p-type doped quantum barrier

2013 ◽  
Vol 38 (2) ◽  
pp. 202 ◽  
Author(s):  
Yun Ji ◽  
Zi-Hui Zhang ◽  
Swee Tiam Tan ◽  
Zhen Gang Ju ◽  
Zabu Kyaw ◽  
...  
Keyword(s):  
Quantum Well ◽  
Light Emitting Diodes ◽  
Multiple Quantum Well ◽  
Hole Transport ◽  
Multiple Quantum ◽  
Light Emitting ◽  
P Type

Low-Temperature Operation of Green, Blue and UV InGaN/GaN Multiple-Quantum-Well Light-Emitting Diodes

2003 ◽  
Vol 764 ◽  
Author(s):  
X. A. Cao ◽  
S. F. LeBoeuf ◽  
J. L. Garrett ◽  
A. Ebong ◽  
L. B. Rowland ◽  
...  
Keyword(s):  
Quantum Well ◽  
Light Emitting Diodes ◽  
Multiple Quantum Well ◽  
Light Output ◽  
Localized States ◽  
Multiple Quantum ◽  
Nonradiative Recombination ◽  
Light Emitting ◽  
Temperature Range ◽  
Green Leds

Absract:Temperature-dependent electroluminescence (EL) of InGaN/GaN multiple-quantum-well light-emitting diodes (LEDs) with peak emission energies ranging from 2.3 eV (green) to 3.3 eV (UV) has been studied over a wide temperature range (5-300 K). As the temperature is decreased from 300 K to 150 K, the EL intensity increases in all devices due to reduced nonradiative recombination and improved carrier confinement. However, LED operation at lower temperatures (150-5 K) is a strong function of In ratio in the active layer. For the green LEDs, emission intensity increases monotonically in the whole temperature range, while for the blue and UV LEDs, a remarkable decrease of the light output was observed, accompanied by a large redshift of the peak energy. The discrepancy can be attributed to various amounts of localization states caused by In composition fluctuation in the QW active regions. Based on a rate equation analysis, we find that the densities of the localized states in the green LEDs are more than two orders of magnitude higher than that in the UV LED. The large number of localized states in the green LEDs are crucial to maintain high-efficiency carrier capture at low temperatures.

High-Bright InGaN Multiple-Quantum-Well Blue Light-Emitting Diodes on Si (111) Using AlN/GaN Multilayers with a Thin AlN/AlGaN Buffer Layer

2003 ◽  
Vol 42 (Part 2, No. 3A) ◽  
pp. L226-L228 ◽  
Author(s):  
Baijun Zhang ◽  
Takashi Egawa ◽  
Hiroyasu Ishikawa ◽  
Yang Liu ◽  
Takashi Jimbo
Keyword(s):  
Quantum Well ◽  
Buffer Layer ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
Light Emitting ◽  
Algan Buffer
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