AlGaInP light-emitting diodes with SACNTs as current-spreading layer.
Transparent conductive current-spreading layer is important for quantum efficiency and thermal performance of light-emitting diodes (LEDs). The increasing demand for tin-doped indium oxide (ITO) caused the price to greatly increase. Super-aligned carbon nanotubes (SACNTs) and Au-coated SACNTs as current-spreading layer were applied on AlGaInP LEDs. The LEDs with Au-coated SACNTs showed good current spreading effect. The voltage bias at 20 mA dropped about 0.15 V, and the optical power increased about 10% compared with the LEDs without SACNTs.
School of Electrical Information and Control Engineering, Beijing University of Technology, Beijing 100124, China. guo@bjut.edu.cn.
Xia
X
Guo
Chun Wei
CW
Guo
Yuan Hao
YH
Jin
Yu
Y
Chen
Qun Qing
QQ
Li
Shou Shan
SS
Fan