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Keywords:

  • Au nanorods;
  • metal sulfide;
  • metal–semiconductors;
  • core–shell structures;
  • gas-sensing
Thumbnail image of graphical abstract

(Au nanorod)–(metal sulfide) core–shell structures are synthesized by employing Au nanorods as the starting reactants and metal thiobenzoates as the metal sulfide precursors in the presence of Ag+ ions. The gas-sensing property of the prepared (Au nanorod)–CdS sensor exhibit a significantly enhanced response and higher sensitivity in comparison with a CdS sensor.