Chemistry Letters, Vol.43, No.4, 480-482, 2014
Redox-active Hydroxy-TEMPO Radical Immobilized in Nafion Layer for an Aqueous Electrolyte-based and Dye-sensitized Solar Cell
A hydrophilic nitroxide radical molecule, 4-hydroxy-2,2,6,6-tetramethylpiperidinoxyl (TEMPOL), was immobilized in a Nafion layer yielding a redox-active modified electrode which enhanced the reduction peak current: The modified electrode and the TEMPOL aqueous electrolyte were applied in a dye-sensitized solar cell to achieve a 2.1% conversion efficiency.