A branching NiCuPt alloy counter electrode for high-efficiency dye-sensitized solar cell.

A rising objective for high-efficiency dye-sensitized solar cells (DSSCs) is to create extraordinary and cost-effective counter electrode (CE) electrocatalysts. We present here a branching NiCuPt alloy CE synthesized by electrodepositing Ni on ZnO microrod templates and subsequently growing branched Cu as well as suffering from a galvanic displacement for Pt uptake. The resultant NiCuPt alloy CE displays a promising electrocatalytic activity toward redox electrolyte having I − /I 3 − couples. An impressive power conversion efficiency of 9.66% is yielded for the liquid-junction DSSC platform. [ABSTRACT FROM AUTHOR]