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Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
Published on: September 12, 2014
A low recombination rate indolizine sensitizer for dye-sensitized solar cells
Aron J Huckaba1, Aswani Yella2, Phillip Brogdon3
1481 Coulter Hall, Chemistry Department, University of Mississippi, University, MS, 38677, USA. delcamp@olemiss.edu and EPFL Valais-Wallis, Institution of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, Rue de l'indutrie 17, CH-1951 Sion, Switzerland.
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 I(-)/I3(-) or Co(bpy)3(2+/3+) redox shuttles were obtained, which compare favourably to the known excellent surface coverage co-sensitization dye, .
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