Polymer solar cells with enhanced power conversion efficiency using nanomaterials and laser techniques

Abstract

Organic solar cells are photovoltaic cells and a type of green energy source with great potential application due to low production costs and mechanical flexibility. This study focused on the study of the electrical, optical and structure properties of polymer solar cells (PSCs) with many layers using newly synthesised polyimine. The molecular structure of the polyimine was characterised by Fourier transformation infrared and nuclear magnetic resonance spectroscopies as well as thermogravimetric analysis. The incorporated Al2O3 and TiO2 nanoparticles (NPs) in the active layer of the PSCs increased the absorbance of the polymer. Solar cells were constructed with a suitable coating and good efficiency using a spin-coating technique, and the efficiency was enhanced using a laser. The efficiencies of the PSCs that contain Al2O3 NPs before using a laser at 3.7% and after using a laser at 5.6% as well as the PSCs that contain TiO2 before using a laser at 10.052 and 12.3% were investigated. Importantly, this study provides a new approach for enhancing the performance of PSCs using nanomaterials and laser techniques