作者: Priyanka Dhatarwal , R.J. Sengwa
DOI: 10.1016/J.IJLEO.2021.167215
关键词: Nanomaterials 、 Band gap 、 Oxide 、 Nanocomposite 、 Materials science 、 Optical conductivity 、 Titanium dioxide 、 Tin oxide 、 Optoelectronics 、 Polymer nanocomposite
摘要: Abstract This paper reports the detailed ultraviolet-visible (UV-Vis) range absorbance, transmittance, and reflectance spectra, various optical parameters (viz. energy band gaps, Urbach energy, refractive index, extinction coefficient, complex dielectric permittivity, conductivity) of polymer nanocomposite (PNC) films comprising biodegradable poly(vinyl pyrrolidone) (PVP) matrix different oxide nanofillers (i.e., silica (SiO2), alumina (Al2O3), tin (SnO2), zinc (ZnO), titanium dioxide (TiO2)). The effects these their concentrations (1–5 wt%) on properties nanocomposites were systematically explored comparatively demonstrated, especially with consideration behaviour wide gap semiconductor nanomaterials (SnO2, ZnO, TiO2). results confirmed that SiO2 Al2O3 nanoparticles containing PNCs found controllable in a narrow by variation filler concentration, whereas can be tuned for SnO2, TiO2 loaded PVP matrix-based PNC films. multifunctionalities revealed appropriateness development regulator, UV-shielder, light diffuser, photo-sensor, detector-type optoelectronic devices.