ZnO/ZnS core-shell nanostructures for hydrogen gas sensing performances

Yu Sheng Tsai, Tsung Wei Chou, Chun Yu Xu, Wen Chang Huang, Chia Feng Lin, Yew-Chuhg Wu, Yung Sen Lin, Hsiang Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

ZnO/ZnS core-shell structures were hydrothermally grown on SiO2 substrates functioning as hydrogen gas sensing chips. Results indicate that a core-shell structure with an appropriate sulfurization period of 10 min had better H2 sensing performance than those of all other growth conditions. Furthermore, multiple material characterizations revealed that ZnS with a growth time of 10 min could form high-quality and good-adherent ZnS powders with moderate thickness attached to the ZnO nanorods. Because of their small size, portability, simple fabrication and high sensitivity, ZnO/ZnS core-shell based H2 gas sensors show promise for future H2 detecting applications.

Original languageEnglish
Pages (from-to)17751-17757
Number of pages7
JournalCeramics International
Volume45
Issue number14
DOIs
StatePublished - 1 Oct 2019

Keywords

  • H sensing
  • Shell coverage
  • Sulfurization conditions
  • Surface morphology
  • ZnO/ZnS core-shell

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