Structural, Opto-Physical, Photoluminescence, and Optical Limiting Properties of Polyvinyl (Pyrrolidone and Alcohol) Blend Film Doped with Co-Metal

The optical properties of polyvinyl (pyrrolidine and alcohol) PV(P/A) blend polymer have been improved using Co-metal as a filler for optoelectronic shielding applications. casting technique solutions was used in order to prepare composite films with different Co-ratios (x: 0-18.5). XRD, FT-IR, SEM, UV-visible spectrophotometry were operated study the structure, morphology, features flexible plain films. semi-crystalline nature influenced by ratio nanoparticles. Homogenous dispersion some agglomeration Co-particles has observed host matrix. Then again, successful interaction between matrix particles ensured FT-IR spectroscopic XRD measurements. cut-off absorbance edge is red-shifted from 200 nm (host blend) 228 nm. indirect transition band gap confirmed Tauc's dielectric loss calculations. Its value goes back 5.15 eV (plain 4.43 18.5 wt% Co-blend film. An improvement extinction coefficient, conductivity, refractive index achieved compared blend. non-linear parameters composites also enhanced. Photoluminescence (PL) emission spectra doped various weight percentages examined at wavelength 750 performance prepared recommended laser cut-off. Furthermore, ability tailor film makes it more effective applications including devices, optoelectronics, reflective coating. Keywords: blend, gap, photoluminescence, NL parameters, shielding.