Temperature-dependent electroluminescence efficiency of blue light-emitting diodes with different well widths is investigated. The efficiency droop phenomenon for LEDs at low temperature is dependent with electron overflow and non-uniform hole distribution within MQW region.
© 2010 The Optical Society
C. Wang, C. Chiu, J. Chen, H. Kuo, T. Lu, and S. Wang, "Investigation of Efficiency Droop in Blue InGaN/GaN Light-Emitting Diodes with Different Well Widths," in Conference on Lasers and Electro-Optics 2010, OSA Technical Digest (CD) (Optical Society of America, 2010), paper CMKK2.
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