Abstract
In the present research, semiconducting nanoparticles of Cadmium Selenide (CdSe) were successfully synthesized in Polyvinyl Alcohol (PVA) matrix and casted on glass substrate at room temperature of 30° C through Chemical Bath Deposition (CBD) technique. Various optical properties including Absorbance (A), Transmittance (T), Refractive index (n), Extinction coefficient (k), Real (ε1) and Imaginary (ε2) dielectric constants and Optical conductivity (σopt) were evaluated as a function of wavelength ranging from 300 nm to 700 nm using UV-Visible spectrophotometer. The optical band gap and size of polymer capped nanoparticles was obtained to be 2.87 eV and 2.77 nm respectively.
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