Lau Genevieve P S, Décoppet Jean-David, Moehl Thomas, Zakeeruddin Shaik M, Grätzel Michael, Dyson Paul J
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
Sci Rep. 2015 Dec 16;5:18158. doi: 10.1038/srep18158.
Novel ionic liquid-sulfolane composite electrolytes based on the 1,2,3-triazolium family of ionic liquids were developed for dye-sensitized solar cells. The best performing device exhibited a short-circuit current density of 13.4 mA cm(-2), an open-circuit voltage of 713 mV and a fill factor of 0.65, corresponding to an overall power conversion efficiency (PCE) of 6.3%. In addition, these devices are highly stable, retaining more than 95% of the initial device PCE after 1000 hours of light- and heat-stress. These composite electrolytes show great promise for industrial application as they allow for a 14.5% improvement in PCE, compared to the solvent-free eutectic ionic liquid electrolyte system, without compromising device stability.
基于1,2,3 - 三唑鎓类离子液体开发了新型离子液体 - 环丁砜复合电解质用于染料敏化太阳能电池。性能最佳的器件短路电流密度为13.4 mA cm⁻²，开路电压为713 mV，填充因子为0.65，对应总功率转换效率（PCE）为6.3%。此外，这些器件具有高度稳定性，在经受1000小时光照和热应力后仍保留超过95%的初始器件PCE。与无溶剂共晶离子液体电解质体系相比，这些复合电解质在不影响器件稳定性的情况下使PCE提高了14.5%，显示出巨大的工业应用前景。
