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Sensitive Room Temperature Photoluminescence-Based Sensing of H2S with Novel CuO–ZnO Nanorods

Research output: Research - peer-reviewArticle

  • Xiao Liu
  • Baosheng Du
  • Ye Sun
  • Miao Yu
  • Yongqi Yin
  • Wei Tang
  • Chong Chen
  • Lei Sun
  • Bin Yang
  • Wenwu Cao
  • Michael N R Ashfold
Original languageEnglish
Pages (from-to)16379–16385
Number of pages7
JournalACS Applied Materials and Interfaces
Issue number25
Early online date3 Jun 2016
StatePublished - 29 Jun 2016


Novel CuO nanoparticle-capped ZnO nanorods have been produced using a pulsed laser deposition (PLD) method. These nanorods are shown to grow by a CuO-nanoparticle-assisted vapour-solid-solid (V-S-S) mechanism. The photoluminescence (PL) accompanying ultraviolet illumination of these capped nanorod samples shows large variations upon exposure to trace quantities of H2S gas. The present data suggests that both the Cu-doped ZnO stem and the CuO capping nanoparticle contribute to optical H2S sensing with these CuO-ZnO nanorods. This study represents the first demonstration of PL-based H2S gas sensing, at room temperature, with sub-ppm sensitivity. It also opens the way to producing CuO-ZnO nanorods by a V-S-S mechanism using gas phase methods other than PLD.

    Research areas

  • Cu-doped ZnO nanorods, heterostructure, pulsed laser deposition, vapour-solid-solid mode, gas sensing, optical sensor

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  • Manuscript_CuO-ZnO NRs final2

    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via ACS at Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 1 MB, PDF-document

    License: CC BY-NC


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