Morphologies and material properties of ZnO nanotubes, ZnO/ZnS core-shell nanorods, and ZnO/ZnS core-shell nanotubes

Yu Sheng Tsai, Jyun Rong Chen, Chang Hsueh Lee, Chih Chen Kuo, Ya Hsuan Lin, Chun Chieh Wang, Yu Cheng Chang, Yew Chung Sermon Wu, Hsiang Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this study, ZnO nanotubes, ZnO/ZnS core-shell nanorods, and ZnO/ZnS nanotubes were fabricated. To fabricate different types of ZnO-based nanocomposites, the central area of the ZnO nanorods was etched by a KCl solution and the outward shell was sulfurized to form ZnS/ZnO shell structures. Surface morphologies and material properties of the various nanostructures were examined by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Transmission X-ray Microscopy (TXM). Multiple material characterizations including X-Ray Diffraction (XRD), X-Ray Photoelectron Spectroscopy (XPS), and Photoluminescence (PL) were performed. Results indicate that larger surface areas and higher defect concentrations can be obtained by the etching of ZnO nanorods. ZnO/ZnS nanotubes formed by sulfurization roughen the shell surface and mitigate defects. Results indicate that ZnO and ZnO/ZnS nanotubes show promise for future sensing device applications.

Original languageEnglish
JournalCeramics International
DOIs
StateAccepted/In press - 2021

Keywords

  • Core-shell
  • Defects
  • Morphology
  • Nanotubes
  • ZnO
  • ZnS

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