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      Sensitive and selective room temperature H2S gas sensor based on Au sensitized vertical ZnO nanorods with flower-like structures

      , Article Journal of Alloys and Compounds ; Volume 628 , April , 2015 , Pages 222-229 ; 09258388 (ISSN) Hosseini, Z. S ; Mortezaali, A ; Iraji Zad, A ; Fardindoost, S ; Sharif University of Technology
      Elsevier Ltd  2015
      Abstract
      Pursuing a sensing structure with a large effective surface area, partial ordered arrays of ZnO nanorods with flower-like structures are introduced for gas sensing applications. Room temperature H2S response of the grown structure shows significant enhancement after modification with Au nanoparticles. High response (about 1270 at 6 ppm H2S gas) and selectivity were achieved by depositing an Au layer with nominal thickness ∼6 nm. X-ray photoelectron spectroscopy (XPS) was utilized to describe the H2S sensing mechanism  
    Total 1 records