Investigation of Optical Properties of Thin Films by Means of UV-visible Spectrophotometer: A Review

Thin films have been synthesized using different deposition methods such as chemical bath deposition, vacuum evaporation, thermal evaporation, sputtering, hydrothermal, dip coating method and pulsed laser deposition. In this work, UV-visible spectrophotometer technique was employed to study the optical properties and band gap of the obtained thin films. UV-visible spectrophotometer technique has many advantages such as rapidly analysis ability, cost effective, versatile and simple to use. This technique measures the absorption or transmission of light that passing through the samples as a function of wavelength. The band gap was about 1.5 eV, matched the solar spectrum.