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

Journal Article · Tue Jan 28 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4861977· OSTI ID:22264023

Deepa, S.; Skariah, Benoy; Thomas, Boben ^[1]; Joseph, Anisha ^[2]

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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)

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.

• OSTI ID: 22264023
• Journal Information: AIP Conference Proceedings, Vol. 1576, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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