title: Highly efficient telluride electrocatalysts for use as Pt-free counter electrodes in dye-sensitized solar cells.
abstract: Two transition metal tellurides, CoTe and NiTe2, were synthesized and for the first time employed as the counter electrodes (CEs) with high catalytic activity for reduction of I3(-) in dye-sensitized solar cells (DSCs). Using CoTe and NiTe2-based CEs, photoelectric conversion efficiencies (PCEs) of 6.92% and 7.21% were achieved for DSCs, respectively, comparable to that of 7.04% achieved when using a Pt-based CE. The results indicated that, serving as a CE in DSCs, telluride could be a cost-effective and efficient alternative to the noble metal Pt.
authors.affiliation: State Key laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China. tinglima@dlut.edu.cn shiyantao@dlut.edu.cn.
authors.forename: Jiahao
authors.initials: J
authors.lastname: Guo
authors.forename: Yantao
authors.initials: Y
authors.lastname: Shi
authors.forename: Yuting
authors.initials: Y
authors.lastname: Chu
authors.forename: Tingli
authors.initials: T
authors.lastname: Ma