基于低共熔溶剂聚合物电解质染料敏化太阳能电池研究

发布时间：2018-10-16 16:18

【摘要】：以琼脂糖聚合物为基质,1-甲基-2-吡咯烷酮(NMP)为溶剂,由尿素、氯化胆碱合成的低共熔溶剂(DES)作为添加剂制备聚合物电解质用于制备准固态染料敏化太阳能电池(DSSC)。研究了尿素/氯化胆碱配比、低共熔溶剂添加量对聚合物电解质电化学性能及其DSSC光电性能的影响。研究结果表明:随着尿素/氯化胆碱配比增加,准固态电解质的导电性能增加,尿素、氯化胆碱的配比为2:1时可获得最佳电导率7.24 m S/cm。对不同低共熔溶剂含量电解质进行离子电导率测试研究发现:添加量为20wt%时,电解质获得最佳电导率6.21 m S/cm。染料敏化太阳能电池的光电效率随低共熔溶剂含量的增加先增加后降低,低共熔溶剂添加量为20wt%时,获得最佳光电效率η=3.18%,短路电流密度J_(sc)=10.28 m A/cm~2,开路电压V_(oc)=0.59 V,填充因子FF=0.51。
[Abstract]:Using agarose polymer as matrix, 1-methyl-2-pyrrolidone (NMP) as solvent, low eutectic solvent (DES) synthesized from urea and choline chloride as additive, polymer electrolyte was prepared to prepare quasi solid dye sensitized solar cell (DSSC). The effects of the ratio of urea to choline chloride and the amount of eutectic solvent on the electrochemical properties of polymer electrolytes and the photoelectric properties of DSSC were studied. The results show that the conductivity of quasi solid electrolyte increases with the increase of the ratio of urea to choline chloride, and the optimum conductivity is 7.24 m / cm ~ (-1) when the ratio of urea and choline chloride is 2:1. The ionic conductivity of electrolytes with different content of eutectic solvent was studied. The results showed that the best conductivity of electrolyte was 6.21 m S / cm when the content of electrolyte was 20 wt%. The photovoltaic efficiency of dye sensitized solar cells increased first and then decreased with the increase of low eutectic solvent content. When the amount of low eutectic solvent was 20wt%, the optimum photoelectric efficiency 畏 = 3.18, short-circuit current density J _ (sc) = 10.28mA / cm ~ 2, open circuit voltage V _ (oc) = 0.59V, filling factor FF=0.51..
【作者单位】：中南大学冶金与环境学院;
【基金】：中南大学创新驱动计划项目(2016CX022);中南大学教师基金(905010104) 留学回国基金以及中南大学大学生创新创业项目(201510533205,CX2015237)~~
【分类号】：TM914.4

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