Design of an Organic Chromophore for P-Type Dye-Sensitized Solar Cells

摘要

Dye-sensitized solar cells (DSSCs) have attracted a great deal of interest since the seminal paper of Gratzel and co-workers in 1991. The majority of studies in this field are based on the sensitization of a n-type semiconductor. Normally this kind of solar cell consists of a photoactive anode and a passive cathode (n-type DSSCs). However, DSSCs in which the cathode is photoactive are also possible, and the development of photocathodes can provide an entry to the preparation of a tandem solar cell, in which both electrodes are photoactive. Until now, there have been very few studies on the sensitization of p-type semiconductors. Although attempts have been made to use some dyes as the sensitizer, their efficiencies are relatively low.