聚4-乙烯基吡啶凝胶电解质在DSSCs中应用性能

Application of poly(4-vinylpyridine) gel electrolyte for dye-sensitized solar cells

采用自由基溶液聚合法合成出聚4-乙烯基吡啶-丙烯腈共聚物,通过聚4-乙烯基吡啶-丙烯腈共聚物与交联剂发生化学交联反应固化液体电解质,制得凝胶电解质,并将凝胶电解质应用于染料敏化太阳能电池,测定了电池的光电性能。研究发现,聚合物质量分数为凝胶电解质前驱体5%时,制备的染料敏化太阳能电池光电性能最佳,光电转换效率可达到纯液体电解质染料敏化太阳能电池的65.43%,而含离子液体凝胶电解质染料敏化太阳能电池的光电转换效率可达到含离子液体电解质染料敏化太阳能电池的97.41%,且电池稳定性较好。对凝胶电解质在柔性染料敏化太阳能电池中的应用也进行了初步研究。

The gel electrolytes containing liquid-electrolyte were prepared by the chemically cross-linking reaction of P（4-VP-co-AN） with the gelator, after P（4-VP-co-AN） were synthesized by the way of radical solution polymerization. The gel electrolytes were used in the dye-sensitized solar cells. It was found that the DSSCs exhibited an optimum photo-electric behavior when the content of gel electrolyte precursor was 5% of the polymer amount, and its photo-electric conversion efficiency were 65. 43% of the DSSCs with liquid electrolyte. The photo-electric conversion efficiency of the quasi-solid state dye-sensitized solar cells containing ionic liquid respectively reached 97.41% of the DSSCs with liquid electrolyte containing ionic liquid. The quasi-solid state dye-sensitized solar cells containing ionic liquid were stable. The flexible quasi-solid state dye-sensitized solar cells were also studied.