Variation of efficiency droop with quantum well thickness in InGaN/GaN green light-emitting diode

Liu Wei^a),^c), Zhao De-Gang†^a), Jiang De-Sheng^a), Chen Ping^a), Liu Zong-Shun^a), Zhu Jian-Jun^a), Li Xiang^a), Liang Feng^a), Liu Jian-Ping^b), Yang Hui^a),^b)

Normalized EQE values versus injection current, measured in PC mode with a duty cycle of 0.1% for both LEDs W7 and W8, denoted by black squares and red circles, respectively.