Element substitution of kesterite Cu₂ZnSnS₄ for efficient counter electrode of dye-sensitized solar cells.

ABSTRACT: Development of cost-effective counter electrode (CE) materials is a key issue for practical applications of photoelectrochemical solar energy conversion. Kesterite Cu₂ZnSnS₄ (CZTS) has been recognized as a potential CE material, but its electrocatalytic activity is still insufficient for the recovery of I^-/I₃^- electrolyte in dye-sensitized solar cells (DSSCs). Herein, we attempt to enhance the electrocatalytic activity of kesterite CZTS through element substitution of Zn²⁺ by Co²⁺ and Ni²⁺ cations, considering their high catalytic activity, as well as their similar atomic radius and electron configuration with Zn²⁺. The Cu₂CoSnS₄ (CCTS) and Cu₂NiSnS₄

SUBMITTER: Lu S 

PROVIDER: S-EPMC5992223 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature