• 文献标题:   Compound Ag nanocluster-graphene electrodes as transparent and current spreading electrodes for improved light output power in near-ultraviolet light emitting diodes
  • 文献类型:   Article
  • 作  者:   SEO TH, KIM S, KIM MJ, KIM H, SUH EK
  • 作者关键词:   gan, light emitting diode, compound ag nanoclustergraphene 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:   10
  • DOI:   10.1088/0022-3727/47/21/215103
  • 出版年:   2014

▎ 摘  要

We introduced a two-dimensional graphene network on a Ag nanocluster as a transparent and current spreading electrode (TCSE) for a near-ultraviolet light emitting diode (NUV-LED), and compared the performance with those with graphene electrodes or conventional indium tin oxide (ITO) electrodes. The current-voltage characteristics and electroluminescence (EL) data showed that compound Ag nanocluster-graphene (CA-G) electrodes operated well as TCSEs in NUV-LED devices. The forward voltage at an input current of 20mA was 4.06V for the NUV-LED of current spreading electrodes with CA-G electrodes, which is only slightly higher than the value 3.96V with ITO electrodes as TCSEs. The EL intensity of NUV-LEDs with CA-G electrodes also showed a slight increase, compared to that of NUV-LEDs with planar ITO transparent conducting electrodes.