Optical properties of dye(P- naphtholbenzein(α)‎ )‎

Abstract EN

Thin film of a dye (p-Naphtholbenzein (α)( was prepared by spin-coating technique on glass.

The optical properties of the P-Naphtholbenzein (α) (with thickness 4µm) were investigated at room temperature and they include absorbance / transmittance / reflectance, spectra, absorption coefficient, extinction coefficient, optical conductivity and complex dielectric constant.

The data of absorption coefficient indicated for direct transition with direct energy gap (Eg ).We have also studied Ubrach energy (∆E)and the ratio of carrier concentration to the effective mass (N / m).