期刊
OPTICS LETTERS
卷 35, 期 19, 页码 3285-3287出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.35.003285
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- National Science Council of Taiwan (NSCT) [NSC 96-2112-M-018-007-MY3]
Some specific designs on the electron blocking layer (EBL) of blue InGaN LEDs are investigated numerically in order to improve the hole injection efficiency without losing the blocking capability of electrons. Simulation results show that polarization-induced downward band bending is mitigated in these redesigned EBLs and, hence, the hole injection efficiency increases markedly. The optical performance and efficiency droop are also improved, especially under the situation of high current injection. (C) 2010 Optical Society of America
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