Angew. Chem. Int. Ed. 2010, 49, 6646 –6649

Highly Efficient Mesoscopic Dye-Sensitized Solar Cells Based on
Donor–Acceptor-Substituted Porphyrins**

Takeru Bessho, Shaik M. Zakeeruddin, Chen-Yu Yeh,* Eric Wei-Guang Diau,* and
Michael Gr tzel*