NO2 sensing studies of bio-green synthesized Au-doped SnO2

NO2 sensing studies of bio-green synthesized Au-doped SnO2 Gold (Au) doped SnO2 nanoparticles have been synthesized using remnant water (ideally kitchen waste) collected from soaked Bengal gram beans (Cicer arietinum L.) extract. The synthesized nanoparticles were initially investigated for their structural, morphological and vibrational properties. The structural properties revealed rutile structure with narrow size distribution and average crystallite size of ~25 nm. The investigation using UV–Vis spectroscopy, and Raman spectroscopy indicated the formation of structural defects and oxygen vacancies due to bio-green synthesis and incorporation of Au in SnO2 lattice. Subsequently, Au-doped biosynthesized SnO2 nanoparticles were coated onto the glass substrate using doctor blade method to form thin films. These thin films were investigated for their gas sensing properties and were found to be highly sensitive to NO2 at 200 °C operating temperature. The reported gas sensing results suggest that the biosynthesis of Au-doped SnO2 is a promising method to fabricate low-cost SnO2 based NO2 sensor. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-017-7156-3
Publisher site
See Article on Publisher Site

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