Applied Physical Chemistry, Centre for Molecular Devices, Department of Chemistry, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden.
Phys Chem Chem Phys. 2013 Oct 28;15(40):17419-25. doi: 10.1039/c3cp52869c.
Recently, cobalt redox electrolyte mediators have emerged as a promising alternative to the commonly used iodide/triiodide redox shuttle in dye-sensitized solar cells (DSCs). Here, we report the successful use of a new quasi-liquid, polymer-based electrolyte containing the Co(3+)/Co(2+) redox mediator in 3-methoxy propionitrile solvent in order to overcome the limitations of high cell resistance, low diffusion coefficient and rapid recombination losses. The performance of the solar cells containing the polymer based electrolytes increased by a factor of 1.2 with respect to an analogous electrolyte without the polymer. The performances of the fabricated DSCs have been investigated in detail by photovoltaic, transient electron measurements, EIS, Raman and UV-vis spectroscopy. This approach offers an effective way to make high-performance and long-lasting DSCs.
最近，钴氧化还原电解质介体作为一种有前途的替代物，出现在染料敏化太阳能电池（DSC）中常用的碘化物/三碘化物氧化还原穿梭体。在这里，我们报告了在 3-甲氧基丙腈溶剂中使用含有 Co(3+)/Co(2+)氧化还原介体的新型拟液相聚合物电解质的成功应用，以克服高电池电阻、低扩散系数和快速复合损失的限制。与不含聚合物的类似电解质相比，含有聚合物电解质的太阳能电池的性能提高了 1.2 倍。通过光伏、瞬态电子测量、EIS、拉曼和 UV-vis 光谱详细研究了制备的 DSC 的性能。这种方法为制造高性能和长寿命的 DSC 提供了一种有效途径。
