Reproducible Preparation of Thin Graphene Films Using a Green and Efficient Liquid-Phase Exfoliation Method for Applications in Photovoltaics

Abstract

This paper presents an innovative, cost-effective, and environmentally sustainable approach to producing high-quality graphene nanosheets (G-NSs) on a large scale. Particularly, we have achieved a remarkable graphene material, expertly dissolved in ethanol at an impressive concentration of 0.7 mg/mL, using a cutting-edge electrophoretic deposition method on an ITO/PET surface. This achievement holds great promise for a wide range of photovoltaic applications. The G-NSs were rigorously analyzed using advanced techniques, including FESEM, EDAX elemental mapping, X-ray diffraction (XRD), and Raman analysis. This comprehensive examination yielded a significant discovery: the thickness of the deposited films profoundly influences the material’s interaction with photons. This finding positions the synthesized graphene material as a game changer in the field of light detection sensors, with the potential to revolutionize the landscape of optoelectronics.