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Thin film; silver selenide; reactive evaporation; electrical conductivity.

The electrical properties of silver selenide thin films prepared by reactive evaporation have been studied. Samples show a polymorphic phase transition at a temperature of 403 ± 2 K. Hall effect study shows that it has a mobility of 2000 cm²V^–1s^–1 and carrier concentration of 10¹⁸ cm^–3 at room temperature. The carriers are of 𝑛-type. X-ray diffraction study indicates that the as-prepared films are polycrystalline in nature. The lattice parameters were found to be 𝑎 = 4.353 Å, 𝑏 = 6.929 Å and 𝑐 = 7.805 Å.

M C Santhosh Kumar¹ B Pradeep¹

1. Department of Physics, Cochin University of Science and Technology, Cochin 682 022, India

Published

October 2002

Manuscript received

29 July 2001

Manuscript revised

17 August 2002