In quasi-solid electrolytes loaded with nanoparticles such as silica and titania, the solvent of the electrolyte has a key role in the separation of ionic species and their adsorption on the surface of nanoparticle. The present article demonstrates the effect of different solvents on the ionic adsorption and its impact on the photoelectrochemical characteristics of dye sensitized solar cells (DSSCs). Ionic adsorption behaviour has been studied by zeta potential measurements and analysis of carbon to nitrogen (C/N) ratio. It has been found out that effective cationic adsorption occurs in 3-methoxypropionitrile (MPN) as solvent in electrolyte, whereas poor adsorption occurs in N-methyl-2-pyrrolidone (NMP)-based electrolyte due to the higher donor number of the latter which results in effective interaction of solvent and nanopowder. Performance of DSSC fabricated with MPN-based solvent in electrolyte was superior to others in both liquid and quasi-solid electrolytes.

在负载有纳米颗粒（如二氧化硅和二氧化钛）的准固体电解质中，电解质的溶剂在离子种类的分离及其在纳米颗粒表面的吸附中起关键作用。本文演示了不同溶剂对离子吸附的影响及其对染料敏化太阳能电池（DSSC）的光电化学特性的影响。离子吸附行为已通过zeta电位测量和碳氮比（C / N）分析进行了研究。已经发现有效的阳离子吸附发生在3-甲氧基丙腈（MPN）作为电解质中的溶剂，而基于N-甲基-2-吡咯烷酮（NMP）的电解质吸附较差，这是由于后者的供体数较高。导致溶剂和纳米粉的有效相互作用。