Moses Ezhil Raj, A. and Senthilkumar, V. and Swaminathan, V. and Wollschlager, J. and Suendorf, M. and Neumann, M. and Jayachandran, M. and Sanjeeviraja, C. (2008) Studies on transparent spinel magnesium indium oxide thin films prepared by chemical spray pyrolysis. Thin Solid Films, 517 (2). pp. 510-516. ISSN 0040-6090

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Ternary semiconducting oxide compound magnesium indium oxide films (MgIn2O4), manifesting high transparency were prepared by metal organic chemical spray pyrolysis technique. Precursors prepared for various cationic ratios of Mg/In=0.35, 0.40, 0.45 and 0.50 were thermally sprayed onto quartz substrates, decomposed at 450 °C and the spinel phase evolution was studied. X-ray diffraction, Rutherford backscattering and X-ray photoelectron spectroscopy studies have been conducted to confirm the formation of single-phase MgIn2O4 films with Mg/In ratio 0.50. From optical transmission studies, the observed optical band gaps varied from 3.18 to 3.86 eV (0.35bMg/Inb0.5). The electrical conductivity variations of these films were measured in the temperature range between 30 and 150 °C by four-probe technique (34.07–1.44×10−5 S cm−1) and the Hall coefficient showed n-type electrical conduction and high carrier concentration (0.16×1020–0.89×17 cm−3).

Item Type: Article
Uncontrolled Keywords: Thin films; X-ray diffraction; Electrical conductivity; Optical properties; Rutherford backscattering spectroscopy; X-ray photoelectron spectra; Magnesium indium oxide; Spray coating technique
Subjects: Electrochemical Materials Science
Depositing User: ttbdu cecri
Date Deposited: 01 Apr 2012 10:50
Last Modified: 01 Apr 2012 10:50

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