摘要
目的研究一种新型的准固态电解质的制备工艺,分析制备工艺中各影响因素对准固态电解质吸收率、电导率及光电性能的影响.方法以丙烯酸-聚乙二醇共混聚合物为基体形成凝胶,吸附液态电解质形成准固态电解质,选取反应时间、聚乙二醇分子量、干燥时间和KI/I2的物质量比4个制备工艺中的主要影响因素分别制样,测试聚合物凝胶的吸收率、准固态电解质的离子电导率及以其组装的染料敏化太阳能电池的光电转换效率,探索制备工艺.结果实验表明当反应时间为45 min,采用聚乙二醇1 000,干燥时间为90 min,n(KI)∶n(I2)=50∶1时,准固态电解质的各项性能最佳.结论随反应时间、干燥时间的增加,准固态电解质的吸收率和电导率变化趋势为先增大后减少.随聚乙二醇分子量的增大,准固态电解质的吸收率呈现先减小后增大的趋势,而电导率呈现先增大后减小的趋势.随KI浓度的增加,准固态电解质的吸收率和电导率变化趋势为先减小后增大.
A new processing method for quasi-solid electrolyte preparation was proposed and effects on the the absorption rate, the ionic conductivity and the photoelectric conversion efficiency of the quasi-solid electrolyte produced by the proposed processing method were studied. The quasisolid electrolyte was formed from acrylic acid-polyethylene glycol polymer blend as gel matrix by absorbing liquid electrolyte. Taking reaction time, molecular weight of polyethylene glycol, drying time and KI/I2 molar ratio as key processing factors, the absorption rate, the ionic conductivity of the quasi-solid electrolyte and the photoelectric conversion efficiency of the assembled dye-sensi-tized solar cell were tested. Experimental results show that when the reaction time is 45min, the molecular weight of polyethylene glycol is 1 000, the drying time is 90min and n（KI） ： n（ I2 ） = 50 ： 1, performance of the quasi-solid electrolyte is optimal. Conclusion is that with the increase of reaction time and drying time, the absorption rate and the electrical conductivity of quasi-solid electrolyte show a tendency that they increase first and then decrease. With the increase of the molecular weight of polyethylene glycol, the absorption rate of quasi-solid electrolyte decreases first and then increases;but in contrast, the conductivity increases first and then decreases. With the increasing of concentration KI, the absorption rate and the conductivity first decrease and then increase.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
北大核心
2015年第6期1113-1119,共7页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家自然科学基金项目(21103112)
住房和城乡建设部技术开发项目(2014-H-011)
沈阳建筑大学科研项目(2013131)
关键词
染料敏化太阳能电池
准固态电解质
凝胶
电导率
光电性能
dye-sensitized solar cell
quasi-solid electrolyte
gel
electrical conductivity
photoelectric performance
