11% efficiency solid-state dye-sensitized solar cells with copper(II/I) hole transport materials.

ABSTRACT: Solid-state dye-sensitized solar cells currently suffer from issues such as inadequate nanopore filling, low conductivity and crystallization of hole-transport materials infiltrated in the mesoscopic TiO₂ scaffolds, leading to low performances. Here we report a record 11% stable solid-state dye-sensitized solar cell under standard air mass 1.5 global using a hole-transport material composed of a blend of [Cu (4,4',6,6'-tetramethyl-2,2'-bipyridine)₂](bis(trifluoromethylsulfonyl)imide)₂ and [Cu (4,4',6,6'-tetramethyl-2,2'-bipyridine)₂](bis(trifluoromethylsulfonyl)imide). The amorphous Cu(II/I) conductors that conduct holes by rapid hopping infiltrated in a 6.5 μm-thick mesoscopic TiO₂ scaffold are crucial for achieving such high efficien

SUBMITTER: Cao Y 

PROVIDER: S-EPMC5472710 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature