SHI irradiation of metal doped zinc sulfide polymer nanocomposites synthesized using micro emulsion method

The metal doped ZnS nanoparticles dispersed in polystyrene were synthesized using micro emulsion method. The synthesized free standing nanocomposites films of 18 μm thickness were irradiated with 60 MeV nickel ions at two different fluences for the modification of structural, optical and chemical properties. The pristine and irradiated samples were characterized by X-ray diffraction, UV–visible and FTIR spectrophotometer. The SEM and XRD results confirmed the synthesis of nanoparticles. The ion irradiation shifted the optical absorption towards higher wavelength and decreased the band gap energy to significant levels. The infrared band at 465 cm−1 confirmed the Zn–S bonding. The intensity of other absorption bands was modified after ion irradiation.