skip to main content

SciTech ConnectSciTech Connect

Title: Gas sensing behaviour of Zn doped SnO{sub 2} nanostructures

In the present study pure and Zn-doped nanoparticles has been synthesized for gas sensing application. The synthesized nanoparticles were characterized by XRD (X-ray Diffraction), FESEM (Field emission scanning electron microscopy), UV-visible absorption spectroscopy and Raman spectroscopy. FESEM results revealed that nanoparticles were spherical. XRD and Raman spectroscopy confirmed tetragonal rutile phase of nanoparticles. No peak correspond to dopant has been observed in the doped nanoparticles suggesting that dopant gets incorporated into the lattice sites of SnO{sub 2}. The band gap of SnO{sub 2} nanoparticles was found to decrease on doping with Zn. The enhanced sensing response of doped nanoparticles towards ethanol vapour is attributed to the presence of oxygen vacancies and decrease in crystallite size of doped nanoparticles.
Authors:
; ;  [1]
  1. Department of Physics, Guru Nanak Dev University, Amritsar, Punjab (India)
Publication Date:
OSTI Identifier:
22488850
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTROSCOPY; DOPED MATERIALS; ENERGY GAP; ETHANOL; FIELD EMISSION; NANOPARTICLES; NANOSTRUCTURES; OXYGEN; RAMAN SPECTROSCOPY; RUTILE; SCANNING ELECTRON MICROSCOPY; TIN OXIDES; VACANCIES; VAPORS; X-RAY DIFFRACTION; ZINC COMPOUNDS