WS2-decorated ZnO nanorods and enhanced ultraviolet emission

作者：Yao, Chujun; Lin, Jiamin; Qu, Yupeng; Jiang, Kai; Hu, Zhigao; Li, Lequn; Xu, Ning; Sun, Jian^*; Wu, Jiada^*

来源：Materials Letters, 2022, 306: 130880.

DOI：10.1016/j.matlet.2021.130880

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

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.

• 单位
  复旦大学