| 초록 |
Dye-sensitized solar cells (DSSCs) have attracted considerable interest because of their higher conversion efficiency and potential low costs of production and materials. On the basis of systematic device engineering benefited from continuous efforts on material innovation and device physics, very recently, porphyrin-cosensitized solar cells with cobalt-based electrolyte have exceeded 12% efficiency. Considering a recent gradual increment in the highest cell performance of quasi- or solid-state dye-sensitized solar cells to solve potential problems with liquid electrolytes, it is of utmost importance to reconsider the basic principle of dye-sensitized solar cells for the remarkable breakthrough: Elucidation of the relationship between molecular structure, device photophysics, photovoltaic properties of core materials, and co-sensitization process would be a prerequisite to overcome the situation. Here, new strategy on materials paradigm for highly efficient dye-sensitized solar cells will be described. |
