Aging mechanism of GaN-based yellow LEDs with V-pits
Zhang Tian-Ran, Fang Fang †, Wang Xiao-Lan, Zhang Jian-Li, Wu Xiao-Ming, Pan Shuan, Liu Jun-Lin, Jiang Feng-Yi
       

(a) Average LOP of analyzed sample tested at 35 A/cm2 in 500-h aging process. Inset shows L–I curves for sample before and after aging. (b) S value versus current density before and after aging process. (c) The I–V characteristic of sample before and after aging. (d) Ideality factors versus current density for the sample before and after aging.