摘要：为提高以离子液体作为电解质染料敏化太阳电池光电转化效率,通过水解法合成一种高比表面积的纳米多孔二氧化硅,作为添加剂加入染料敏化太阳电池电解质中,获得离子液体本体电阻降低,离子传输性升高,光电转化效率提高等各项优良性能,并通过对添加量进行分析对比。结果表明:在添加纳米多孔二氧化硅的质量分数为5%时,太阳电池光电转化效率提高效果最好,转化效率最高可达3.87%(100 mW/cm²)。

关键词： 染料敏化太阳电池；离子液体；多孔二氧化硅

Abstract： To improve the photoelectric conversion efficiency， the silica nano-particles with nano-sized pores and very high specific surface area were synthesized and used as an additive in ionic liquid electrolyte of dye-sensitized solar cell. The charge transport of the electrolyte and conversion efficiency of dye-sensitized solar cell was both improved compared with that without addition of porous silica nano-particles. The results showed that the optimum photoelectric conversion rate of the dye-sensitized solar cell device were achieved 3.87%（100 mW/cm²）at mass fraction of 5% for silica addition. 

Keywords：dye-sensitized solar cell； ionic liquids； porous silica