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Preparation and characterization of flash-evaporated CuInSe2 thin films

  • Proceedings Of The Symposium On Thin Film Science And Technology
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Abstract

Thin films of CuInSe2 have been evaporated onto glass substrates by flash evaporation. The as-deposited films are amorphous and annealing in selenium atmosphere produces polycrystalline films. The films were characterized bytem and x-ray diffraction techniques. The optical absorption of the films shows three energy gaps of 1·03, 1·07 and 1·22 eV. The crystal field and spin-orbit splitting are thus found to be 0·04 eV and 0·16 eV respectively. The percentaged-character of the valence band states is ∼35%. The Arrhenius plot of electrical conductivity of films showed impurity ionization ofE A = 75 meV.

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Authors and Affiliations

  1. Department of Physics, Indian Institute of Technology, 600 036, Madras, India

    D Sridevi, J J B Prasad & K V Reddy

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  1. D Sridevi
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  2. J J B Prasad
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  3. K V Reddy
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Sridevi, D., Prasad, J.J.B. & Reddy, K.V. Preparation and characterization of flash-evaporated CuInSe2 thin films. Bull. Mater. Sci. 8, 319–324 (1986). https://doi.org/10.1007/BF02744139

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  • DOI: https://doi.org/10.1007/BF02744139

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