Electrical properties of silver selenide thin films prepared by reactive evaporation

[摘要] 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^â€�??1s^â€�??1 and carrier concentration of 10¹⁸ cm^â€�??3 at room temperature. The carriers are of ð‘�??-type. X-ray diffraction study indicates that the as-prepared films are polycrystalline in nature. The lattice parameters were found to be ð‘�? = 4.353 Ã�?, ð‘�? = 6.929 Ã�? and ð‘�? = 7.805 Ã�?.

[学科分类] 材料工程

[关键词] Thin film;silver selenide;reactive evaporation;electrical conductivity.