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Nanoscale Res Lett. 2014 Apr 8;9(1):171.
Guo X1, Guo CW, Jin YH, Chen Y, Li QQ, Fan SS.
1-School of Electrical Information and Control Engineering, Beijing University of Technology, Beijing 100124, China. [email protected].
Abstract
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.
