Engineering of Osmium (II)-Based Light Absorbers for Dye-Sensitized Solar Cells

摘要

The light absorber or sensitizer is one of the most important components of dye-sensitized solar cells (DSCs). Adequate engineering of this material allows DSCs to achieve a fine balance among higher solar energy-to-electricity conversion efficiency, lower manufacturing costs, and better long-term stability. The most efficient DSCs to date are fabricated with transition metal based sensitizers. For example, Gratzel and co-workers recently demonstrated that a Zn~(II) porphyrin with donor-acceptor substituent shows a remarkable power conversion efficiency of η≈13 % under illumination with standard AM 1.5G simulated sunlight.