Effect of conductive polymers on the optical properties of electrospun polyacrylonitryle nanofibers filled by polypyrrole, polythiophene and polyaniline

摘要： The aim of the study was the production of composite nanofibers using the electrospinning methods from a PAN/DMF solutions with PANI, PPy and PT conducting polymers. A scanning electron microscope (SEM) was used in order to carry out an analysis of the morphology a of the resulting nanowires. In order to examine the chemical structure of the composite nanofibers, energy dispersive spectrometry (EDX) and Fourier-Transform Infrared spectroscopy (FTIR) were used. The analysis of the optical properties and the energy band gap of the prepared nanowires was determined by spectral analysis using a UV-Vis spectrophotometer. Using the recorded absorbance spectra determined the banded refractive index n, real n' and imaginary k part of the refractive index as a function of the wavelength, complex dielectric constant ?, real and imaginary part ?r and ?i of the dielectric constant as a function of the wavelength of the obtained nanofibers. The obtained results, which were as follows: energy band gap of 3.77 – 4.08 eV, complex refractive index coefficient values of 1.61 – 2.98 and dielectric constant in the range of 2.58 – 8.87, suggest the possibility to applied of the produced nanomaterials in photovoltaic devices.