Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 628, Issue -, Pages 222-229Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2014.12.163
Keywords
ZnO nanorods; Au; Room temperature H2S sensor
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Funding
- Alzahra University
- Sharif University of Technology
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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 similar to 6 nm. X-ray photoelectron spectroscopy (XPS) was utilized to describe the H2S sensing mechanism. (C) 2015 Elsevier B.V. All rights reserved.
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