Impact of ZnS/Mn on the Structure, Optical, and Electric Properties of PVC Polymer

The most efficient way to create novel materials that may be used in a variety of optoelectronic applications is thought to be doped mixed polymers with appropriate fillers. Undoped and doped PVC polymers with ZnS/Mn formed at different temperatures were fabricated using the casting method. The Rietveld method was used to discover the structure and microstructure of Zn0.95Mn0.05S prepared at T = 300, 400, and 500 degrees C. The distribution and existence of the nanofiller over the PVC matrix were determined via XRD, FTIR, EDS, and SEM techniques. The effect of the preparation temperatures of the ZnS/Mn nanofiller on the absorption, transmittance, reflectance, refractive index, extinction coefficient, dielectric constant, AC conductivity, electrical modulus, and DC conductivity activation energy data of the PVC polymer was studied using the diffused reflectance technique. Doping PVC with ZnS/Mn (prepared at 300 degrees C) lowered the direct and indirect optical band gaps from 5.4 and 4.52 eV to minimum values of 4.55 and 3.63 eV. The fluorescence intensity of pure PVC is greatly enhanced upon loading with ZnS/Mn. The PVC exhibited two near UV peaks, one violet and one blue color, while, in addition, the doped polymers exhibited green and orange colors. The corresponding CIE diagram for all the samples was also determined.

Automated summary

Doping mixed polymers with appropriate fillers is believed to be the most efficient method to create novel materials for optoelectronic applications. Undoped and doped PVC polymers with ZnS/Mn were fabricated at different temperatures, and their structure and microstructure were analyzed. The distribution of the nanofiller in the PVC matrix was determined using various techniques, and the effect of preparation temperatures on the optical properties of the PVC polymer was studied. Doping with ZnS/Mn decreased the optical band gaps and enhanced fluorescence intensity in the PVC.