Preparation and investigation of suitability of PMMA/PVAc/TBAI/PANI blended polymers films for optoelectronic applications.

The present study involved the production of films made from poly-methyl methacrylate (PMMA) and poly (vinyl acetate) (PVAc) that were loaded with tetra- n -butylammonium iodide (TBAI) and polyaniline (PANI). These films were intended for use in various advanced applications. The PMMA/PVAc/TBAI/x wt% PANI blended polymers exhibited great attributes compared to the host blend. The structure and morphology of the formed blends were explored via X-ray diffraction and scanning electron microspore techniques. The doped blend with a doping level of x = 0.22 exhibits the greatest absorbance in the UV range, whereas the doped blend with a doping level of x = 0.55 shows absorbance in the visible range. The smallest direct bandgap (4.59 eV) and indirect bandgap (4.371 eV) are achieved with an x value of 0.55 wt%. The sample with x = 0.44 exhibits the largest refractive index, optical dielectric constants and non-linear optical parameter values. The effect of PNAI concentrations on the emitted colors of the host blend was examined. The influences of temperature and PANI doping amount on the host blend were investigated. The ohmic/nonohmic nature and the different conduction mechanisms in all blends were explored. • The inclusion of PANI in PMMA/PVAc/TBAI causes irregular increases in the refractive index. • Adding PANI enhanced the values of ε r , ε i , VELF, SELF and σ o p t of the host blend. • As PNAI's concentration increased from (x = 0.22 to x = 0.44), the emission intensity increased. • The I values of the blended polymers affected by voltage and temperature. • All blends exhibited non-ohmic characteristics and Poole-Frenkel emission mechanism. [ABSTRACT FROM AUTHOR]