▎ 摘 要
NOVELTY - A screen printable carbon paste comprises graphite, carbon black, a graphene material, a binder and a solvent, where the graphene material mass is 5-30% of the total mass of the graphite, carbon black and graphene materials. USE - Screen printable carbon paste for perovskite solar cell (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a perovskite solar cell.