Optical Properties of Polyvinyl pyridine Fibers (PVP) Prepared by Electrospinning

Abstract

In this study, polyvinylpyrrolidone (PVP) nanofibers were synthesized using the electrospinning technique. The findings indicate that key process parameters, including applied voltage, polymer concentration, collecting distance, drum rotation speed, and flow rate, significantly influence fiber formation. These parameters played a crucial role in minimizing fiber diameter. This experimental investigation provides a comprehensive analysis of the impact of various electrospinning conditions on the fabrication of PVP nanofibers, contributing to a deeper understanding of the optimization of fiber morphology and properties. The structural and morphological characteristics of the PVP nanofibers were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. Beyond examining fiber diameter, this research investigates how variations in electrospinning parameters influence the structural, thermal, and optical properties of PVP nanofibers The optical properties of the PVP nanofiber thin films were examined through transmission and absorption spectra measured at room temperature over the wavelength range of 300–900 nm. The optical energy gap ((Eₒ  = 3.98 eV)) and other related parameters were determined using Tauc’s relation.