title: Two-dimensional graphene bridges enhanced photoinduced charge transport in dye-sensitized solar cells.
abstract: As a novel two-dimensional (2D) material, graphene shows great benefits in electric and material science. Compared to 1D nanomaterials, it may show more excellent properties. Here, we introduced graphene as 2D bridges into the nanocrystalline electrodes of dye-sensitized solar cells, which brought a faster electron transport and a lower recombination, together with a higher light scattering. On the basis of these advantages, the short-circuit current density was increased by 45% without sacrificing the open-circuit voltage, and the total conversion efficiency was 6.97%, which was increased by 39%, comparing with the nanocrystalline titanium dioxide photoanode, and it was also much better than the 1D nanomaterial composite electrode.
authors.affiliation: Beijing University of Aeronautics and Astronautics, Beijing 100191, People's Republic of China.
authors.forename: Nailiang
authors.initials: N
authors.lastname: Yang
authors.forename: Jin
authors.initials: J
authors.lastname: Zhai
authors.forename: Dan
authors.initials: D
authors.lastname: Wang
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Chen
authors.forename: Lei
authors.initials: L
authors.lastname: Jiang