Synthesis and study of a new nanocomposite of [poly(o-toluidine)]/(WO۳nanoparticles) under solid-state and green condition and itsphotovoltaic activity in hybrid solar cell

The derivatives of polyaniline have obtained remarkable attention due to their electronicsapplications in the field of nanomaterials. This work considers the electronical, structural, andphotovoltaic properties of poly(o-toluidine) and WO۳ nanoparticles (POT/WO۳NPs)nanocomposite that was ready using a template-free method and a basic mechanochemicalreaction in solid-state. Cyclic voltammetry (CV), Fourier transforms infrared (FT-IR) andultraviolet-visible (UV-Vis) spectroscopy were used to study the nanocomposite. The results ofband gap assessed via cyclic voltammetry and UV-vis specified that the forbidden band gap for(POT/WO۳NPs) nanocomposite was ۱.۰۳. The I–V curves analysis and power conversionefficiency of the fabricated devices FTO/TiO۲NPs/POT/Al andFTO/TiO۲NPs/POT/WO۳NPs/Al single-layer solar cells were performed and discussed. Thephotovoltaic energy conversion efficiency (PCE) of the two devices were ۰.۱۸% and ۰.۵۵%,respectively. The data showed both indirect and direct transition were observed for theWO۳NPs, POT and POT/WO۳NP. This investigation demonstrated that the morphologyand architecture of (POT/WO۳NPs) nanocomposite can be helpful in improving solarcell performance.

کلیدواژه ها:

Conductive polymers ، Hybrid solar cell ، Mechanochemical reaction ، Poly(o-toluidine) ، WO۳nanoparticles.