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Title: Gas sensing properties of magnesium doped SnO{sub 2} thin films in relation to AC conduction

Conducting magnesium doped (0 to 1.5 wt %) tin oxide thin films prepared by Spray Pyrolysis technique achieved detection of 1000 ppm of LPG. The films deposited at 304 °C exhibit an enhanced response at an operating temperature of 350 °C. The microstructural properties are studied by means of X-ray diffraction. AC conductivity measurements are carried out using precision LCR meter to analyze the parameters that affect the variation in sensing. The results are correlated with compositional parameters and the subsequent modification in the charge transport mechanism facilitating an enhanced LPG sensing action.
Authors:
; ;  [1] ;  [2]
  1. Research Centre in Physics, Mar Athanasius College, Kothamangalam P.O., Kerala 686 666 (India)
  2. Dept.of Physics, Holy Grace Academy of Engineering for Women, Mala, Kerala 683 102 (India)
Publication Date:
OSTI Identifier:
22264023
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1576; Journal Issue: 1; Conference: OMTAT 2013: 2. international conference on optoelectronic materials and thin films for advanced technology, Kochi, Kerala (India), 3-5 Jan 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; ACCURACY; DEPOSITS; DETECTION; DOPED MATERIALS; MAGNESIUM; MICROSTRUCTURE; PYROLYSIS; THIN FILMS; TIN OXIDES; X-RAY DIFFRACTION