Effect of tetrabutylammonium iodide content on PVDF-PMMA polymer blend electrolytes for dye-sensitized solar cells
Effect of tetrabutylammonium iodide content on PVDF-PMMA polymer blend electrolytes for dye-sensitized solar cells
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DOI：
10.1007/s11581-015-1464-5
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发表时间：
2015-10-01
期刊：
影响因子：
2.8
通讯作者：
Arof, A. K.
中科院分区：
文献类型：
--
作者：
Theerthagiri, J.;Senthil, R. A.;Arof, A. K.
研究了四丁基碘化铵对聚偏氟乙烯-聚甲基丙烯酸甲酯-碳酸亚乙酯(PVDF-PMMA-EC)-I-2聚合物共混电解质的影响，并对其用于染料敏化太阳能电池的性能进行了优化。制备了不同质量比(50、60、70、80%)的四丁基碘化铵(TBAI)PVDF-PMMA-EC-I-2聚合物电解质。用傅立叶变换红外光谱(FT-IR)、差示扫描量热法(DSC)、电化学阻抗谱(EIS)等技术对所制备的固体聚合物共混电解质进行了表征。FT-IR光谱揭示了聚合物电解质各组分之间的相互作用。利用电化学阻抗谱研究了TBAI盐对聚合物电解质离子电导率的影响。在PVDF-PMMA-EC-I-2中，含60%TBAI的聚合物电解质具有最高的室温电导率，达到5.10×10~(-3)S cm~(-1)。采用含60%TBAI的PVDF-PMMA-EC-I-2聚合物电解质制备的电池具有最好的性能，在100 mW cm(-2)的光照下，短路电流密度为8.0 mA cm(-2)，开路电压为0.66 V，填充因子为0.65，总功率转换效率为3.45%。因此，有机碘盐在聚合物电解液中的重量含量影响着染料敏化太阳能电池的整体性能。
The influence of tetrabutylammonium iodide on the polyvinylidene fluoride-poly(methyl methacrylate)-ethylene carbonate (PVDF-PMMA-EC)-I-2 polymer blend electrolytes was investigated and optimized for use in a dye-sensitized solar cell. The different weight ratios (50, 60, 70, and 80 %) of tetrabutylammonium iodide (TBAI)-added PVDF-PMMA-EC-I-2 polymer electrolytes were prepared. The prepared solid polymer blend electrolytes were characterized by using various techniques such as Fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry (DSC), and electrochemical impedance spectroscopy (EIS). The FT-IR spectra revealed the interaction among all composition of polymer electrolytes. The influence of TBAI salt on the ionic conductivity of polymer electrolytes was studied using electrochemical impedance spectroscopy. The polymer electrolyte containing 60 % of TBAI in PVDF-PMMA-EC-I-2 showed the highest room temperature conductivity of 5.10 x 10(-3) S cm(-1). The fabricated DSSC using PVDF-PMMA-EC-I-2 polymer electrolytes with 60 % of TBAI showed the best performance with a short-circuit current density of 8.0 mA cm(-2), open-circuit voltage of 0.66 V, fill factor of 0.65, and the overall power conversion efficiency of 3.45 % under an illumination of 100 mW cm(-2). Hence, the weight content of organic iodide salt in polymer electrolytes influences the overall performance of dye-sensitized solar cells.