DING Bin-bin, ZHAO Fang, SONG Jing-jing, XIONG Jian-yong, ZHENG Shu-wen, YU Xiao-peng, XU Yi-qin, ZHOU De-tao, ZHANG Tao, FAN Guang-han. Performance Improvement of Blue InGaN Light-emitting Diode with A Special Designed Electron-blocking Layer[J]. Chinese Journal of Luminescence, 2013,34(3): 345-350
DING Bin-bin, ZHAO Fang, SONG Jing-jing, XIONG Jian-yong, ZHENG Shu-wen, YU Xiao-peng, XU Yi-qin, ZHOU De-tao, ZHANG Tao, FAN Guang-han. Performance Improvement of Blue InGaN Light-emitting Diode with A Special Designed Electron-blocking Layer[J]. Chinese Journal of Luminescence, 2013,34(3): 345-350 DOI: 10.3788/fgxb20133403.0345.
Performance Improvement of Blue InGaN Light-emitting Diode with A Special Designed Electron-blocking Layer
Three kinds of electron-blocking layer (EBL) AlGaN based LED were compared numerically. They are conventional AlGaN EBL
AlGaN-GaN-AlGaN (AGA) and gradual Al composition AlGaN-GaN-AlGaN (GAGA) EBL. Their porfermance were analyzed involved carrier concentration in the active region
energy band diagram
electrostatic field and internal quantum efficiency (IQE). The results indicate that the LED with an GAGA EBL exhibits a better hole injection efficiency
a more peaceable efficiency droop
a lower electron leakage
and a smaller electrostatic field than the LED with a conventional AlGaN EBL or with an AGA EBL.
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