Carbon nanotube-graphene composite film as transparent conductive electrode for GaN-based light-emitting diodes

Kang, C.H. and Shen, C. and Saheed, M.S.M. and Mohamed, N.M. and Ng, T.K. and Ooi, B.S. and Burhanudin, Z.A. (2016) Carbon nanotube-graphene composite film as transparent conductive electrode for GaN-based light-emitting diodes. Applied Physics Letters, 109 (8).

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Abstract

Transparent conductive electrodes (TCE) made of carbon nanotube (CNT) and graphene composite for GaN-based light emitting diodes (LED) are presented. The TCE with 533-Ω/� sheet resistance and 88 transmittance were obtained when chemical-vapor-deposition grown graphene was fused across CNT networks. With an additional 2-nm thin NiOx interlayer between the TCE and top p-GaN layer of the LED, the forward voltage was reduced to 5.12 V at 20-mA injection current. Four-fold improvement in terms of light output power was observed. The improvement can be ascribed to the enhanced lateral current spreading across the hybrid CNT-graphene TCE before injection into the p-GaN layer. © 2016 Author(s).

Item Type: Article
Impact Factor: cited By 15
Uncontrolled Keywords: Chemical vapor deposition; Gallium nitride; Graphene; III-V semiconductors; Light emitting diodes; Nanocomposite films; Nickel compounds; Transparent electrodes; Yarn, CNT networks; Forward voltage; GaN-based light-emitting diodes; Graphene composites; Injection currents; Lateral currents; Light output power; Transparent conductive electrodes, Carbon nanotubes
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 25 Mar 2022 07:38
Last Modified: 25 Mar 2022 07:38
URI: http://scholars.utp.edu.my/id/eprint/30827

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