WS2-decorated ZnO nanorods and enhanced ultraviolet emission

Chujun Yao, Jiamin Lin, Yupeng Qu, Kai Jiang, Zhigao Hu, Lequn Li, Ning Xu, Jian Sun, Jiada Wu

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Enhancing the ultraviolet emission from ZnO nanostructures is of interest in the applications for fabricating ZnO-based short-wavelength light-emitting devices. We decorated the surfaces of hydrothermally grown ZnO nanorods with WS2 by pulsed laser deposition and succeeded in enhancing the ultraviolet emission of ZnO. The WS2-decorated ZnO nanorods were characterized for morphology, structure and optical properties. Bare ZnO nanorods have a high capability of emitting ultraviolet excitonic emission. WS2 decorating resulted in the tailoring of the ultraviolet emission and an enhancement over 2 times was obtained for the ZnO nanorods covered with a thin WS2 coating. At low temperatures, more enhancement in the ultraviolet emission of ZnO can be achieved due to WS2 decorating.

Original languageEnglish
Article number130880
JournalMaterials Letters
Volume306
DOIs
StatePublished - 1 Jan 2022

Keywords

  • Emission enhancement
  • Nanocomposites
  • Semiconductors
  • Surface decoration
  • Ultraviolet emission

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