OPTICAL-PROPERTIES OF CHEMICALLY DEPOSITED CDS - LI THIN-FILMS

This paper describes the optical properties of CdS: Li films prepared by a chemical-deposition method. The films were found to be polycrystalline in nature, containing a mixture of the α-hexagonal and β-cubic forms of CdS. They were studied for their optical properties in the visible region for various film thicknesses, and the optical constants-absorption coefficient, refractive index and absorption index-were evaluated from transmittance data as functions of wavelength in the visible region. The optical bandgap and the real and imaginary parts of the dielectric constant were also evaluated. © 1979 Taylor & Francis Ltd.