Efficient and cost-effective graphene on silicon solar cells prepared by spray coating

Abstract

A facile method – graphene on silicon (G/Si) solar cells prepared by spray coating – is developed. The efficiency of spray-coated G/Si solar cells can reach 4.41%, comparable to that of conventional CVD-G/Si solar cells. This approach is done in air at low temperature, and is easy to scale up, making it appealing for the mass production of efficient and cost-effective G/Si solar cells.