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Electrical properties enhancement of Liquid and Polymer Gel based electrolytes used for DSSC applications
Materials Research Express ( IF 1.8 ) Pub Date : 2020-11-10 , DOI: 10.1088/2053-1591/abc2a2
Shivani Arora Abrol 1 , Cherry Bhargava 1 , Pardeep Kumar Sharma 2
Affiliation  

Electrolytes have been considered a major component of DSSC and play a vital role in determining the ionic conductivity and efficiency of the cell. Emphasis was laid on the confirming the conductivity upon fabrication of an electrolyte using in situ gelation process from a newfangled combination of Triiodide (KI/I2/Glacial acetic acid/distilled water) and gel-based polymer electrolyte (Gelator: PMMA/THF/PC/EC) in the ratio 8:2. The electrolyte portion so framed generated a photo conversion efficiency of 11.32% and a fill factor of 0.439. The conductivity of the sample characterized by Scanning Electron Microscopy showed that the uniform tracks confirmed extreme ionic conductivity of the blend electrolyte which showed dependance on the layered movement of PMMA- co- THF- KI2/PC/EC based electrolyte system. Energy Dispersive x-ray Analysis (EDX) reports engrained the percentage weight proportions of conductive elements (C & O with a wt% of 65.48 and 30.18 in one spectrum and K & I with a wt% of 44.7 & 35.25 in another spectrum respectively). FTIR test analysis was performed to identify the functional groups of the PGE which identified the ionic conductivity of the sample, shown by the intensity of peak absorbance in the range 400–4000 cm−1. Further it was observed, the conductivity of the different concentrations of the liquid and gelator solution demonstrated an increase in exhibiting ionic conductivity and the same was depicted by the morphological studies that featured dark pores of the sample which were spread consistently indicating the amorphous nature of the material (at room temperature).



中文翻译:

用于DSSC应用的基于液体和聚合物凝胶的电解质的电性能增强

电解质被认为是DSSC的主要成分,在决定电池的离子电导率和效率方面起着至关重要的作用。重点是使用在电解质的制造铺设在确认导电原位凝胶化过程从三碘化物(KI / I的一个新奇组合2/冰醋酸/蒸馏水)和凝胶型聚合物电解质(Gelator:PMMA / THF / PC / EC)的比例为8:2。这样构成的电解质部分产生了11.32%的光转换效率和0.439的填充系数。通过扫描电子显微镜表征的样品的电导率表明,均匀的轨迹证实了共混电解质的极端离子电导率,这显示出基于PMMA-co-THF-KI2 / KI / PC / EC的电解质系统的分层运动。能量色散X射线分析(EDX)报告指出了导电元素的重量百分比百分比(一种光谱中C&O的重量百分比分别为65.48和30.18,另一种光谱中的K&I的重量百分比分别为44.7和35.25) 。-1。进一步观察到,不同浓度的液体和胶凝剂溶液的电导率显示出离子电导率的增加,并且通过形态学研究描绘了相同的情况,形态学研究的特征是样品的黑孔不断扩散,表明黑洞的无定形性质。材料(在室温下)。

更新日期:2020-11-10
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