Enhanced quasi solid-state (QSS) polymer electrolytes were developed by consolidating dissolved polyacrylonitrile (PAN) in a binary organic solvent of ethylene carbonate-propylene carbonate (EC-PC) with ion promoters such as 1-methyl-3-propylimidazolium iodide (MPII), sodium iodide (NaI) salt, and Iodine (I2). In this work, the concentration of I2 was varied to one-twentieth, one-fifteenth, one-tenth, one-fifth, and equal of the total weight of the NaI salt used. The purpose of this study is to investigate the dependence of dye-sensitized solar cells (DSSCs) performance on the concentration of I2. Fourier-transform infrared (FTIR) spectroscopy study confirmed that there is a complexation occurred between all materials used. The electrolyte consists of I2 with one-tenth of the weight of the NaI salt (I1/10 electrolyte) has achieved the highest ionic conductivity of 8.70 × 10–3 S cm-1 at ambient temperature. From the current density-voltage (J-V) study, DSSC based I1/10 electrolyte has achieved the best photovoltaic efficiency of 6.47%.

通过将溶解的聚丙烯腈（PAN）在碳酸亚乙酯-碳酸亚丙酯（EC-PC）的二元有机溶剂中与离子促进剂（例如1-甲基-3-丙基咪唑鎓碘化物（MPII））合并，开发出增强型准固态（QSS）聚合物电解质），碘化钠（NaI）盐和碘（I2）。在这项工作中，I2的浓度变化为所用NaI盐总重量的二十分之一，十五分之一，十分之一，五分之一，并且相等。本研究的目的是研究染料敏化太阳能电池（DSSC）性能对I2浓度的依赖性。傅里叶变换红外（FTIR）光谱研究证实，所有使用的材料之间都发生了络合。电解质由I2组成，其NaI盐重量的十分之一（I1 / 10电解质）在环境温度下具有最高的离子电导率，为8.70×10–3 S cm-1。由电流密度-电压（J-V）研究表明，基于DSSC的I1 / 10电解质的最佳光伏效率为6.47％。