Bifacial dye-sensitized solar cells with transparent cobalt selenide alloy counter electrodes

摘要: Abstract High power conversion efficiency and cost-effectiveness are two persistent objectives for dye-sensitized solar cell (DSSC). Electricity generation from either front or rear side of a bifacial DSSC has been considered as facile avenue bringing down the cost solar-to-electric conversion. Therefore, fabrication transparent counter electrode (CE) with high electrocatalytic activity is prerequisite to realize this goal. We present here feasibility utilizing cobalt selenide (Co–Se) binary alloy application, in which Co–Se synthesized by mild solution strategy device irradiated side. Due optical transparency, charge-transfer ability, activity, maximum efficiencies 8.30% 4.63% recorded under simulated air mass 1.5 (AM1.5) irradiation, respectively. The impressive along fast start-up, multiple start capability, simple preparation highlights potential application cost-effective CE robust DSSCs.