BROWSE

Related Researcher

Author's Photo

Choi, Kyoung Jin
Energy Conversion Materials (EcoMAT) Lab
Research Interests
  • Solar cells, thermoelectrics, piezoelectric

ITEM VIEW & DOWNLOAD

Metal/graphene sheets as p-type transparent conducting electrodes in GaN light emitting diodes

Cited 28 times inthomson ciCited 19 times inthomson ci
Title
Metal/graphene sheets as p-type transparent conducting electrodes in GaN light emitting diodes
Author
Lee, Jung MinJeong, Hae YongChoi, Kyoung JinIl Park, Won
Keywords
Blue light emissions; Current spreading; Electroluminescent intensity; GaN light-emitting diodes; Image brightness; P-type; P-type GaN; Transparent conducting electrodes; Transparent sheets
Issue Date
2011-07
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.99, no.4, pp.1 - 3
Abstract
We demonstrate the use of graphene based transparent sheets as a p-type current spreading layer in GaN light emitting diodes (LEDs). Very thin Ni/Au was inserted between graphene and p-type GaN to reduce contact resistance, which reduced contact resistance from similar to 5.5 to similar to 0.6 Omega/ cm(2), with no critical optical loss. As a result, LEDs with metal-graphene provided current spreading and injection into the p-type GaN layer, enabling three times enhanced electroluminescent intensity compared with those with graphene alone. We confirmed very strong blue light emission in a large area of the metal-graphene layer by analyzing image brightness.
URI
Go to Link
DOI
10.1063/1.3595941
ISSN
0003-6951
Appears in Collections:
MSE_Journal Papers
Files in This Item:
2-s2.0-79961097975.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU