Influence Annealing on the Physical Properties of Silver Selenide Thin Film at Different Temperatures by Thermal Evaporation

Abstract

This survey investigates the thermal evaporation of Ag2Se on glass substrates at various thermalannealing temperatures (300, 348, 398, and 448) °K. To ascertain the effect of annealingtemperature on the structural, surface morphology, and optical properties of Ag2Se films,investigations and research were carried out. The crystal structure of the film was described by Xraydiffractionandothermethods.ThephysicalstructureandcharacteristicsoftheAg2Sethinfilms wereexaminedusingX-rayandatomicforcemicroscopy(AFM)basedtechniques.TheAg2Se films surface morphology was examined by AFM techniques; the investigation gave averagediameter, surface roughness, and grain size mutation values with increasing annealing temperature(75.74 nm–96.36 nm). Additionally, With various variations to the nominal values, the absorbanceand transmittance spectra are further studied and reported in accordance with the wavelength rangeof (400-1100) nm. The findings indicate that the sample highest absorbance value was attained ata temperature treatment of 448 K, whereas the sample highest transmittance was at a temperaturetreatment of 300 K. According to the results, direct transitions were permitted in the under-reviewthin films at optical energies of (2.15, 1.85, 1.75, and 1.7) eV, respectively