Chemistry Letters, Vol.42, No.2, 140-142, 2013
New Organic Sensitizers with N-Substituted or Nonsubstituted Pyrrole Units for Dye-sensitized Solar Cells
New organic dyes with pyrrolic conjugated pi spacers have been prepared in combination with a triphenylamine donor and a cyanoacrylic acid acceptor. Various alkyl substituents can be introduced on the nitrogen atom of the pyrrole ring. The dyes are readily adsorbed on TiO2, and the conversion efficiency is over 5% in DSSC.