Facile synthesis of nano‐structured SnO2 films and their properties in ethanol gas sensing. (1st August 2018)

• Record Type: Journal Article
• Authors: Wang, Ying; Yu, Hongbin; Suo, Hui; Wang, Xinhong; Lu, Ying; Zhu, Suiyi; Yang, Xia
• Is Part Of: Micro & nano letters. Volume 13:Number 8(2018)
• Page Start: 1101
• Page End: 1104
• Publication Date: 2018-08-01
• Subjects: tin compounds -- nanosensors -- nanowires -- X‐ray photoelectron spectra -- scanning electron microscopy -- semiconductor growth -- gas sensors -- nanofabrication -- X‐ray diffraction -- semiconductor thin films -- organic compounds; facile one‐step hydrothermal method -- Ti substrate -- mercaptoacetic acid -- adjusting reagent -- X‐ray diffractometer -- X‐ray photoelectron spectroscopy -- XPS -- ethanol gas sensing -- organic reagents -- gas sensing experiments -- gas sensing properties -- facile synthesis -- nanostructured SnO2 films -- scanning electron microscope -- nanoscaled morphologies -- nanowires -- nanonets -- transparent nanosheets -- nanograsses -- SnO2 -- Ti; Nanotechnology -- Periodicals; Nanostructures -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1049/mnl.2017.0806
• Languages: English
• ISSNs: 1750-0443

Abstract

Abstract : Four types of nano‐structured SnO2 thin films were synthesised via a facile one‐step hydrothermal method on Ti substrate. All the films were prepared by using SnCl4 and NaOH as the precursors with urea, mercaptoacetic acid or sodium citrate as the adjusting reagent. The prepared films were characterised by scanning electron microscope, X‐ray diffractometer, X‐ray photoelectron spectroscopy (XPS) and their properties in ethanol gas sensing were examined. It was found that addition of organic reagents resulted in the formation of different nano‐scaled morphologies, i.e. nanowires, nanonets, transparent nanosheets and nanograsses. The characterisation of XPS indicated that SnO2 was successfully deposited. The gas sensing experiments revealed that morphologies of the nano‐SnO2 films had a great effect on their gas sensing properties. The possible reasons involved were presented.