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Effect of laser irradiation on structural, electrical and optical properties of SnO2 films

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Abstract

Thin films of SnO2 were prepared using a spray pyrolysis technique. Films were irradiated with Nd:YAG laser pulses of various energy densities (2–50 mJ cm−2) with varying number of pulses from 1–50. X-ray diffraction studies were made to investigate the structural changes due to laser irradiation. An improvement in crystallinity and an increase in grain size were observed in laser-irradiated films. Hall coefficient and Hall mobility studies were made in the temperature range 77–300 K for the as-grown as well as laser-irradiated films. An increase in mobility and a decrease in carrier concentration were observed in the films after laser irradiation. Optical transmission studies revealed that the refractive index increased as a result of laser irradiation.

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Authors and Affiliations

  1. Defence Science Centre, Metcalfe House, 110054, Delhi, India

    A. L. Dawar

  2. Department of Physics, A. R. S. D. College, Dhaula Kuan, 110021, New Delhi, India

    A. Kumar

  3. Department of Electronics Science, University of Delhi, South Campus, Benito Jaurez Marg, 110021, New Delhi, India

    S. Sharma, K. N. Tripathi & P. C. Mathur

Authors
  1. A. L. Dawar
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  2. A. Kumar
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  3. S. Sharma
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  4. K. N. Tripathi
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  5. P. C. Mathur
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Dawar, A.L., Kumar, A., Sharma, S. et al. Effect of laser irradiation on structural, electrical and optical properties of SnO2 films. J Mater Sci 28, 639–644 (1993). https://doi.org/10.1007/BF01151238

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  • DOI: https://doi.org/10.1007/BF01151238

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