Study of optical anisotropy in nonpolar and semipolar AlGaN quantum well deep ultraviolet light emission diode

2012 ◽  
Vol 112 (3) ◽  
pp. 033104 ◽  
Author(s):  
Chang-Pei Wang ◽  
Yuh-Renn Wu
Keyword(s):  
Quantum Well ◽  
Ultraviolet Light ◽  
Optical Anisotropy ◽  
Light Emission ◽  
Deep Ultraviolet

Enhanced electrical performance by modulation-doping in AlGaN-based deep ultraviolet light-emitting diodes

2019 ◽  
Vol 33 (08) ◽  
pp. 1950088
Author(s):  
Sipan Yang ◽  
Miao He ◽  
Jianchang Yan ◽  
Kunhua Wen ◽  
Junxi Wang ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Light Emitting Diodes ◽  
Light Emission ◽  
Electrical Performance ◽  
Algan Layer ◽  
Modulation Doping ◽  
Light Emitting ◽  
Growth Method ◽  
Deep Ultraviolet ◽  
Ultraviolet Light Emitting Diodes

Through the silicon modulation-doping (MD) growth method, the electrical performance of AlGaN-based deep ultraviolet light-emitting diodes (DUV-LEDs) is improved by replacing the commonly uniform-doped (UD) method of n-AlGaN layer. The electroluminescence characterisic measurements demonstrate the MD growth method could effectively enhance the light emission intensity. Both the forward voltage and reverse leakage current of the MD samples are obviously reduced compared to those of the UD sample. Due to the existence of periodic Si-MD superlattices in n-AlGaN layers, which may behave like a series of capacitors, the built-in electric fields are formed. Both the measured capacitance–voltage (C–V) characteristics, and related photoluminescence (PL) intensity with the Si-MD growth method are enhanced. In detail, the effects of these capacitors can enhance the peak internal capacitance up to 370 pF in the MD sample, whereas the UD sample is only 180 pF. The results also mean that with better current spreading ability in the MD sample, the MD processes can effectively enhance the efficiency and reliability of DUV-LEDs. Thus, the investigations of the Si-MD growth methods may be useful for improving the electrical performance of DUV-LEDs in future works. Meanwhile, this investigation may partly suggest the minor crystalline quality improvements in the epi-layers succeeding the MD n-AlGaN layer.

scholarly journals Large area deep ultraviolet light of Al0.47Ga0.53N/Al0.56Ga0.44N multi quantum well with carbon nanotube electron beam pumping

AIP Advances ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 075104 ◽  
Author(s):  
Sung Tae Yoo ◽  
Byeongchan So ◽  
Hye In Lee ◽  
Okhyun Nam ◽  
Kyu Chang Park
Keyword(s):  
Electron Beam ◽  
Carbon Nanotube ◽  
Quantum Well ◽  
Ultraviolet Light ◽  
Large Area ◽  
Deep Ultraviolet ◽  
Multi Quantum Well

Deep-ultraviolet light emission properties of nonpolar M-plane AlGaN quantum wells

2014 ◽  
Vol 105 (5) ◽  
pp. 053104 ◽  
Author(s):  
Ryan G. Banal ◽  
Yoshitaka Taniyasu ◽  
Hideki Yamamoto
Keyword(s):  
Quantum Wells ◽  
Ultraviolet Light ◽  
Light Emission ◽  
Emission Properties ◽  
Deep Ultraviolet

(In)AlGaN deep ultraviolet light emitting diodes with optimized quantum well width

2010 ◽  
Vol 207 (9) ◽  
pp. 2198-2200 ◽  
Author(s):  
Tim Kolbe ◽  
Toni Sembdner ◽  
Arne Knauer ◽  
Viola Kueller ◽  
Hernan Rodriguez ◽  
...  
Keyword(s):  
Quantum Well ◽  
Ultraviolet Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Quantum Well Width ◽  
Deep Ultraviolet ◽  
Ultraviolet Light Emitting Diodes

scholarly journals Single deep ultraviolet light emission from boron nitride nanotube film

2010 ◽  
Vol 97 (14) ◽  
pp. 141104 ◽  
Author(s):  
Lu Hua Li ◽  
Ying Chen ◽  
Meng-Yeh Lin ◽  
Alexey M. Glushenkov ◽  
Bing-Ming Cheng ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Ultraviolet Light ◽  
Light Emission ◽  
Boron Nitride Nanotube ◽  
Deep Ultraviolet

Deep-ultraviolet light emission from 4H-AlN/4H-GaN short-period superlattice grown on 4H-SiC(112¯0)

2018 ◽  
Vol 112 (1) ◽  
pp. 012106 ◽  
Author(s):  
M. Kaneko ◽  
S. Ueta ◽  
M. Horita ◽  
T. Kimoto ◽  
J. Suda
Keyword(s):  
Ultraviolet Light ◽  
Light Emission ◽  
Short Period ◽  
Deep Ultraviolet

234 nm and 246 nm AlN-Delta-GaN quantum well deep ultraviolet light-emitting diodes

2018 ◽  
Vol 112 (1) ◽  
pp. 011101 ◽  
Author(s):  
Cheng Liu ◽  
Yu Kee Ooi ◽  
S. M. Islam ◽  
Huili (Grace) Xing ◽  
Debdeep Jena ◽  
...  
Keyword(s):  
Quantum Well ◽  
Ultraviolet Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Ultraviolet ◽  
Ultraviolet Light Emitting Diodes

Optical studies of degradation of AlGaN quantum well based deep ultraviolet light emitting diodes

2010 ◽  
Vol 108 (9) ◽  
pp. 093113 ◽  
Author(s):  
A. Pinos ◽  
S. Marcinkevičius ◽  
J. Yang ◽  
R. Gaska ◽  
M. Shatalov ◽  
...  
Keyword(s):  
Quantum Well ◽  
Ultraviolet Light ◽  
Light Emitting Diodes ◽  
Optical Studies ◽  
Light Emitting ◽  
Deep Ultraviolet ◽  
Ultraviolet Light Emitting Diodes
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