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The document discusses the determination of optical band gap, refractive index, and thickness of thin film samples using UV-VIS-NIR-Spectrophotometer through transmittance spectra. It explains the principles of interference, constructive and destructive interference conditions, and the relationship between transmittance and film properties, including absorption coefficients. Additionally, it describes how to calculate the band gap energy and the relationship between absorption and extinction coefficients.

Author

bhaveshchamaria0609

Language

EN