WS2-decorated ZnO nanorods and enhanced ultraviolet emission

[Display omitted] •ZnO nanorods are surface-decorated with WS2.•WS2 decorating results in the tailoring of the optical properties of ZnO nanorods.•The UV emission is enhanced over 2 times for ZnO nanorods covered with a thin WS2 coating.•The enhancement in the UV emission of ZnO increases with decre...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2022-01, Vol.306, p.130880, Article 130880
Main Authors: Yao, Chujun, Lin, Jiamin, Qu, Yupeng, Jiang, Kai, Hu, Zhigao, Li, Lequn, Xu, Ning, Sun, Jian, Wu, Jiada
Format: Article
Language:English
Subjects:
Decoration
Emission enhancement
Low temperature
Materials science
Nanocomposites
Nanorods
Optical properties
Pulsed laser deposition
Pulsed lasers
Semiconductors
Surface decoration
Ultraviolet emission
Zinc oxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •ZnO nanorods are surface-decorated with WS2.•WS2 decorating results in the tailoring of the optical properties of ZnO nanorods.•The UV emission is enhanced over 2 times for ZnO nanorods covered with a thin WS2 coating.•The enhancement in the UV emission of ZnO increases with decreasing temperature.•An enhancement above 6 times is obtained at 10 K due to WS2 decorating. 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.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2021.130880