Gallium nitride nanowire based nanogenerators and light-emitting diodes

Chih Yen Chen, Guang Zhu, Youfan Hu, Jeng Wei Yu, Jinghui Song, Kai Yuan Cheng, Lung Han Peng, Li Jen Chou, Zhong Lin Wang

Research output: Journal PublicationArticlepeer-review

151 Citations (Scopus)

Abstract

Figure Persented: Single-crystal n-type GaN nanowires have been grown epitaxially on a Mg-doped p-type GaN substrate. Piezoelectric nanognerators based on GaN nanowires are investigated by conductive AFM, and the results showed an output power density of nearly 12.5 mW/m 2. Luminous LED modules based on n-GaN nanowires/p-GaN substrate have been fabricated. CCD images of the lighted LED and the corresponding electroluminescence spectra are recorded at a forward bias. Moreover, the GaN nanowire LED can be lighted up by the power provided by a ZnO nanowire based nanogenerator, demonstrating a self-powered LED using wurtzite-structured nanomaterials.

Original languageEnglish
Pages (from-to)5687-5692
Number of pages6
JournalACS Nano
Volume6
Issue number6
DOIs
Publication statusPublished - 26 Jun 2012
Externally publishedYes

Keywords

  • GaN nanowires
  • LED
  • nanogenerator
  • piezoelectric
  • self-powered system

ASJC Scopus subject areas

  • Materials Science (all)
  • Engineering (all)
  • Physics and Astronomy (all)

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