聚(4-乙烯基吡啶)的合成及其在染料敏化太阳电池中的应用

Synthesis of poly(4-vinylpyridine) and its application to dye sensitized solar cell

采用自由基聚合法合成了聚(4-乙烯基吡啶)(P4VP),并用于制备染料敏化太阳电池的凝胶电介质。研究了P4VP含量对电解质和太阳电池性能的影响。结果表明,以P4VP为骨架通过化学交联固化液态电解质制各的有机胶体电解质体系有机相可溶剂化Li^+,当其含量为7.5wt%时体系离子电导率可达5.77mS/cm与液态电解质相当。利用这种准固态电解质制备的敏化太阳电池在100mW/cm^2,25℃下获得光电转换效率2.3%。

Poly（4-vinylpyridine） （P4VP） was synthesized by radical polymerization and was used for preparation of gel electrolyte in dye sensitized solar cells （DSCs）. The effects of P4VP content on the properties of the electrolyte and the performance of the DSCs were investigated. P4VP, as the framework of the gel electrolyte, can improve the ionic transportation in the electrolyte through solvating the Li^＋ and an ionic conductivity of 5.77 mS/cm, comparable with that of a liquid electrolyte was achieved. DSC with the gel electrolyte yielded a photoelectric conversion efficiency of 2.3% under 100mW/cm^2 at 25℃.