Pyridine-N-Oxide 2-Carboxylic Acid: An Acceptor Group for Organic Sensitizers with Enhanced Anchoring Stability in Dye-Sensitized Solar Cells (pages 140–152)
Bianca Cecconi, Dr. Alessandro Mordini, Dr. Gianna Reginato, Dr. Lorenzo Zani, Prof. Dr. Maurizio Taddei, Dr. Fabrizia Fabrizi de Biani, Dr. Filippo De Angelis, Gabriele Marotta, Dr. Paolo Salvatori and Dr. Massimo Calamante
Version of Record online: 27 JAN 2014 | DOI: 10.1002/ajoc.201300267
A sensitive soul: A D-π-A organic dye carrying a pyridine-N-oxide 2-carboxylic acid anchoring group was synthesized and used as a sensitizer for TiO2. Desorption kinetics experiments demonstrated that the new dye adsorbs onto TiO2 more strongly than a classic cyanoacrylic-acid-containing dye. When used as a sensitizer in a dye-sensitized solar cell, the power conversion efficiency of the sensitizer was approximately 66 % of that of a reference dye.