Graphene hydrogel-based counter electrode for high efficiency quantum dot-sensitized solar cells

Abstract

Hydrothermally fabricated GH and its hybrid incorporated with CuS have been exploited as CEs for CdSeTe QDSCs. High efficiencies of 9.85 and 10.71% were obtained, respectively. The addition of CuS effectively improved the efficiency and stability due to the synergistic effects of the 3D porous structured GH and highly catalytic CuS.