Nanopillar InGaN/GaN light emitting diodes integrated with homogeneous multilayer graphene electrodes

Dae Woo Jeon, Won Mook Choi, Hyeon Jin Shin, Seon Mi Yoon, Jae Young Choi, Lee Woon Jang, In Hwan Lee

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

InGaN/GaN nanopillar light-emitting diodes (LEDs) were fabricated using a highly homogeneous multilayer graphene (h-MLG) electrode. Four layers of h-MLG were prepared homogeneously using chemical vapor deposition and layer-by-layer transfer methods. The h-MLG exhibited excellent optical, structural and electrical properties for use as an electrode in the LEDs. The h-MLG was applied as a transparent top electrode by suspending only on the tip of nanopillar LEDs. The current-driven InGaN/GaN nanopillar LED with the h-MLG electrode was successfully operated at a high current injection and exhibited bright electroluminescence.

Original languageEnglish
Pages (from-to)17688-17692
Number of pages5
JournalJournal of Materials Chemistry
Volume21
Issue number44
DOIs
Publication statusPublished - 2011 Nov 28

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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