Study structure and optical properties of Ag2Se, Ag2Se0.8Te0.2 and Ag2Se0.8S0.2 thin films

Abstract

Silver sulfide and the thin films Ag2Se0.8Te0.2 and Ag2Se0.8S0.2 created by the thermal evaporation process on glass with a thickness of 350 nm were examined for their structural and optical properties. These films were made at a temperature of 300 K. According to the X-ray diffraction investigation, the films are polycrystalline and have an initial orthorhombic phase. Using X-ray diffraction research, the crystallization orientations of Ag2Se and Ag2Se0.8Te0.2 & Ag2Se0.8S0.2 (23.304, 49.91) were discovered (XRD). As (Ag2Se and Ag2Se0.8Te0.2 & Ag2Se0.8S0.2) absorption coefficient fell from (470-774) nm, the optical band gap increased (2.15 & 2 & 2.25eV). For instance, the characteristics of thin films made of Ag2Se0.8Te0.2 and Ag2Se0.8S0.2 and silver sulfide have been studied.

Enhancement efficiency of cadmium selenium solar cell by doping within silver

“…The graph, which displays the X-ray diffraction patterns of electron beam evaporated CdSe films on glass substrates at room temperature, illustrates the X-ray diffraction patterns of each thin film applied to glass as a testimony to the samples' conformity with set criteria. According to the graph [17], the samples exhibit an orthorhombic polycrystalline structure with peaks for CdSe and CdSe:Ag (111), and the results meet established standards. After doping, the films become more crystalline, which sharpens the peaks.…”

“…[23,24]The produced samples' n-type conductivity was validated by the negative signs of Hall coefficients for both pure CdSe and Ag doped films; this finding is consistent with references. The substitution of Ag with Cd might be the cause of the improved electrical characteristics demonstrated by higher carrier mobility and conductivity values for all samples of CdSe thin films [1,17]. The current and voltage density of the n-CdSe:Ag/p-Si solar cell PV under illumination circumstances in Fig.…”

Ag2Te thin films' structural and optical characteristics as a result of Al doping

“…Superionic conductivity and structural transitions in phase are two unique features of the I-VI semiconductor compound known as silver telluride [1]. The monoclinic structure of silver telluride at a low temperature changes structurally to the cubic structure at a high temperature [2]. It has a molar mass of 341.3364 g/mol and a density of 8.318 g/cm 3 , a large magnetoresistance, and high electrical conductivity.…”