TY - JOUR
T1 - Optical performance of N-face AlGaN ultraviolet light emitting diodes
AU - Yu, Hong Ping
AU - Li, Shi Bin
AU - Zhang, Peng
AU - Wu, Shuang Hong
AU - Wei, Xiong Bang
AU - Wu, Zhi Ming
AU - Chen, Zhi
N1 - Publisher Copyright:
© 2014 Chinese Physical Society and IOP Publishing Ltd.
PY - 2014/10/1
Y1 - 2014/10/1
N2 - The optical property and injection efficiency of N-face AlGaN based ultraviolet light emitting diodes (UV-LEDs) are studied and compared with Ga-face AlGaN based UV-LEDs. A staircase electron injector is introduced in the N-face AlGaN based UV-LED. The electroluminescence spectra, power-current performance curves, energy band diagrams, carrier concentration and radiative recombination rate are numerically calculated. The results indicate that the N-face UV-LED has a better optical performance than the Ga-face UV-LED, and the injection efficiency is enhanced owing to the fact that the staircase electron injector is available for UV-LEDs.
AB - The optical property and injection efficiency of N-face AlGaN based ultraviolet light emitting diodes (UV-LEDs) are studied and compared with Ga-face AlGaN based UV-LEDs. A staircase electron injector is introduced in the N-face AlGaN based UV-LED. The electroluminescence spectra, power-current performance curves, energy band diagrams, carrier concentration and radiative recombination rate are numerically calculated. The results indicate that the N-face UV-LED has a better optical performance than the Ga-face UV-LED, and the injection efficiency is enhanced owing to the fact that the staircase electron injector is available for UV-LEDs.
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U2 - 10.1088/0256-307X/31/10/108502
DO - 10.1088/0256-307X/31/10/108502
M3 - Article
AN - SCOPUS:84908065128
SN - 0256-307X
VL - 31
JO - Chinese Physics Letters
JF - Chinese Physics Letters
IS - 10
M1 - 108502
ER -