Efficient binary organic thiolate/disulfide redox mediators in dye-sensitized solar cells based on a carbon black counter electrode

Abstract

New thiolate/disulfide redox couples (M−/M2) were introduced and also combined with T−/T2, resulting in more efficient binary redox couples. The binary redox couples, in particular M−/T2, yielded a high energy conversion efficiency and reasonably stable performance with the carbon black counter electrode for dye-sensitized solar cells.