Chemical bath deposition of {111} textured mercury(ii) selenide thin layers on transparent polyester sheets

Abstract

A novel method for mercury(II) selenide thin film deposition on transparent polyester sheets is presented. The method is based on chemical bath deposition in alkaline media, the chemical reaction involved being hydrolytic decomposition of selenosulfate. X-Ray analysis confirmed that the deposited material is {111} textured mercury(II) selenide. The sheet resistances of the annealed films are about 1.32 kΩ cm^–2 and for as-deposited samples are about 10 times higher. The absorption onset is strongly blue-shifted from the bulk value. This is attributed to size quantization in the ca. 8 nm nanocrystals.