• 文献标题:   Efficiency enhancement of nanorod green light emitting diodes employing silver nanowire-decorated graphene electrode as current spreading layer
  • 文献类型:   Article
  • 作  者:   SEO TH, PARK AH, LEE GH, KIM MJ, SUH EK
  • 作者关键词:   gan, light emitting diode, silver nanowiredecorated graphene electrode
  • 出版物名称:   JOURNAL OF PHYSICS DAPPLIED PHYSICS
  • ISSN:   0022-3727 EI 1361-6463
  • 通讯作者地址:   Chonbuk Natl Univ
  • 被引频次:   5
  • DOI:   10.1088/0022-3727/47/31/315102
  • 出版年:   2014

▎ 摘  要

We report nanorod green light emitting diodes (NGR-LEDs) with a silver nanowire-decorated graphene electrode (S-DGE) as a current spreading electrode to connect each individual nanorod and to give improved emission efficiency. The current-voltage and electroluminescence characteristics of NGR-LEDs with an S-DGE are enhanced remarkably compared to NGR-LEDs with a graphene electrode. The effective current spreading in the whole emission area after thermal annealing of the S-DGE was attributed to reduced sheet and contact resistances caused by the p-type doping of graphene and enhanced adhesion at the graphene-GaN and graphene-silver nanowire interfaces.