Incorporation of au nanoparticles on zno/zns core shell nanostructures for uv light/hydrogen gas dual sensing enhancement

Yu Sheng Tsai, Deng Yi Wang, Jia Jie Chang, Keng Tien Liang, Ya Hsuan Lin, Chih Chen Kuo, Ssu Han Lu, Yewchung Sermon Wu, Lukas Jyuhn Hsiarn Lee*, Hsiang Chen, Dong Sing Wuu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

ZnO/ZnS nanocomposite-based nanostructures exhibit dual light and gas sensing ca-pabilities. To further boost the light/dual sensing properties, gold nanoparticles (Au NPs) were incorporated into the core-shell structures. Multiple material characterizations revealed that Au NPs were successfully well spread and decorated on ZnO/ZnS nanostructures. Furthermore, our findings show that the addition of Au NPs could enhance both 365 nm UV light sensing and hydrogen gas sensing in terms of light/gas sensitivity and light/gas response time. We postulate that the optimization of gas/light dual sensing capability may result from the induced electric field and inhabitation of electron-hole recombination. Owing to their compact size, simple fabrication, and stable response, ZnO/ZnS/Au NPs-based light/gas dual sensors are promising for future extreme environmental monitoring.

Original languageEnglish
Article number903
JournalMembranes
Volume11
Issue number11
DOIs
StatePublished - Nov 2021

Keywords

  • Au nanoparticle
  • Dual sensing
  • Electric field
  • Hydrogen
  • UV light
  • ZnO/ZnS core shell

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