A low recombination rate indolizine sensitizer for dye-sensitized solar cells†
Abstract
A sensitizer incorporating a heavily alkylated surface blocking indolizine donor exhibits excellent light absorption and diminished recombination rates in dye-sensitized solar cells (DSCs). DSC device efficiencies (up to 8%) using either Iā/I3ā or Co(bpy)32+/3+ redox shuttles were obtained, which compare favourably to the known excellent surface coverage co-sensitization dye, D35.