Aqueous Electrolytes Based Dye-sensitized Solar Cells using I^-/I₃^-Redox Couple to Achieve ≥ 4% Power Conversion Efficiency

Abstract

Department of Environmental Engineering, Sangmyung University, Chungnam 330-720, KoreaReceived December 7, 2013, Accepted January 16, 2014We report on the influence of water as an electrolyte on the photovoltaic performances. The photovoltaicperformance was shown to be quite sensitive to the substituent on the donor group. An optimized efficiency of4.41% in the presence of 100% water content using I