Abstract
The poly(methyl methacrylate) (PMMA), pure poly(vinylidene fluoride) (PVDF-HFP), and NaClO4 salt were used to prepare the blend thin films by solution casting procedure. By using the UV–Visible spectrophotometer optical absorption properties of this prepared film were recorded. The direct and indirect optical energy gaps for these thin films were estimated using Tauc's plots from the UV–visible spectra and found that increasing NaClO4 salt content in PMMA + PVDF-HFP blend the absorption edge and indirect band gap energy values were found to be decreased.
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