Improved light emission of GaN-based light-emitting diodes by efficient localized surface plasmon coupling with silver nanoparticles

Cheng Hsueh Lu, Shang En Wu, Yen Lin Lai, Yun Li Li, Chuan Pu Liu

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

An approach for fabricating localized surface plasmon (LSP)-enhanced light-emitting diodes (LEDs) with Ag nanoparticles (NPs) in close proximity to the active layers is demonstrated. The blue light emission from InGaN/GaN multiple quantum wells (MQWs) is increased by 4.4-fold at a wavelength of 470 nm. A faster decay time and a ∼1.5-fold higher spontaneous emission rate confirm the fast recombination channel provided by the LSP coupling mode of the Ag NPs. The internal quantum efficiency is improved by ∼53%. The proposed approach provides a low-cost, large-area, and simple platform for the development of high-efficiency InGaN-based plasmonic LEDs.

Original languageEnglish
Pages (from-to)460-464
Number of pages5
JournalJournal of Alloys and Compounds
Volume585
DOIs
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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