Optical properties of aluminum-zinc oxide thin films prepared by spray pyrolysis technique

Abstract EN

Thin films of ZnO : Al about one μm were deposited on glass substrates using spray pyrolysis technique .

The optimum spray conditions were identified to obtain good compatible between optical and film homogeneously properties.

The optical parameters were calculated depending on transmission spectrum in the range (0.3-0.85) μm.

The fundamental absorption in the band to band transition was also investigated and energy gap of 3.25 eV was recognized in term of the imaginary part of the dielectric constant.