SOLUTION GROWTH AND CHARACTERIZATION OF CADMIUM SULFIDE (CdS) THIN FILMS AT ROOM TEMPERATURE

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i h

ABSTRACT

Semiconductor thin films of Cadmium sulfide (CdS), was successfully deposited on a glass substrates using chemical bath deposition method at different molar concentration (0.03M, 0.06M, 0.09M, 0.12M, and 0.15M) for 24 hours at room temperature Absorbance Spectra (A) data were measured by a 765S Double beam spectrophotometer at wavelength range from 371nm to 1090nm .Other optical properties and solid state properties of the films were computed from the data and compared with the other deposited thin film The film produced with refractive index lower than 1.9 could be useful in anti-reflection coating , window coating, eyeglass coating, solar thermal control coating etc. while those with refractive index greater than could be useful in construction of poultry houses , anti-dazzling coating, solar cells, etc The deposited films having band gap (Eg) within light energy range (1.5 – 3.0eV) of electromagnetic spectrum could find application in solar electricity ,telecommunications ,remote monitoring and control system.

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