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On the optical properties of Mn/SiO and SiO thin films

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Abstract

The ultraviolet, visible and infrared properties of unannealed and annealed amorphous Mn/SiO cermet thin films (300 to 1000 nm thick) prepared by vacuum evaporation at 5.0×10−4 Pa are investigated. The ultraviolet and visible results are analysed assuming optical absorption by indirect transitions. A systematic reduction of the optical energy gap and an increase in the width of the band-tail region is observed with increasing metallic content. The effects of the ratio deposition rate/residual pressure and substrate temperature on the optical properties of SiO x (1<x<2) thin films are also investigated.

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Authors and Affiliations

  1. Department of Physics, Brunel University, Uxbridge, Middlesex, UK

    S. K. J. Al-Ani, M. A. R. Sarkar, J. Beynon & C. A. Hogarth

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  1. S. K. J. Al-Ani
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  2. M. A. R. Sarkar
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  3. J. Beynon
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  4. C. A. Hogarth
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Al-Ani, S.K.J., Sarkar, M.A.R., Beynon, J. et al. On the optical properties of Mn/SiO and SiO thin films. J Mater Sci 20, 1637–1644 (1985). https://doi.org/10.1007/BF00555267

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  • DOI: https://doi.org/10.1007/BF00555267

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