Highly efficient quasi-solid-state dye-sensitized solar cells using polyethylene oxide (PEO) and poly(methyl methacrylate) (PMMA)-based printable electrolytes
Highly efficient quasi-solid-state dye-sensitized solar cells using polyethylene oxide (PEO) and poly(methyl methacrylate) (PMMA)-based printable electrolytes
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DOI：
10.1039/c8ta01729h
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发表时间：
2018-05
影响因子：
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通讯作者：
S. Venkatesan;I. Liu;Jian‐Ci Lin;Ming-Hsiang Tsai;H. Teng;Yuh‐Lang Lee
中科院分区：
文献类型：
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作者：
S. Venkatesan;I. Liu;Jian‐Ci Lin;Ming-Hsiang Tsai;H. Teng;Yuh‐Lang Lee
在这项研究中，高效的可印刷的电解质（PE）制备的准固态染料敏化太阳能电池（QS-DSSC）。利用基于碘化物/三碘化物氧化还原电对和3-甲氧基丙腈（MPN）的液体电解质来制备PE。以聚环氧乙烷（PEO）和聚甲基丙烯酸甲酯（PMMA）为固化剂，优化了聚乙烯的性能。此外，二氧化钛纳米填料（NF）被添加到PE，以提高DSSC的性能。结果表明，基于7/3的PEO/PMMA比率的PE对于有效印刷是最佳的。利用该PE制备的DSSC的能量转换效率为8.48%，高于仅使用PEO PE的电池（7.63%）和液体电池（8.32%）的效率。这主要是由于电解质的电导率和电荷转移电阻在光电极/电解质界面的DSSC的增加。在PE中存在10重量%的TiO 2 NF将QS-DSSC的效率提高到9.12%。通过使用具有TiO 2 NF的PE制造的子模块电池实现了6.78%的效率。基于PE的DSSC在60 °C的热老化期间表现出稳定的长期效率。
In this study, highly efficient printable electrolytes (PEs) were prepared for a quasi-solid-state dye-sensitized solar cell (QS-DSSC). A liquid electrolyte based on iodide/triiodide redox couples and 3-methoxypropionitrile (MPN) was utilized to prepare the PEs. Poly(ethylene oxide) (PEO) and poly(methyl methacrylate) (PMMA) were employed as solidifying agents to optimize the properties of the PEs. Moreover, TiO2 nanofillers (NFs) were added to the PEs to enhance the performance of the DSSCs. The results indicate that a PE based on a PEO/PMMA ratio of 7/3 was optimal for efficient printing. The energy conversion efficiency of the DSSC achieved by using this PE was 8.48%, which was higher than the efficiencies of the cell using only PEO PE (7.63%) and liquid-cells (8.32%). This was mainly due to the increase in the electrolyte conductivity and charge transfer resistance at the photoelectrode/electrolyte interface of the DSSC. The presence of 10 wt% TiO2 NFs in the PEs increased the efficiency of the QS-DSSC to 9.12%. The sub-module cell fabricated by using the PE with TiO2 NFs achieved an efficiency of 6.78%. The PE based DSSC exhibited stable long-term efficiency during thermal aging at 60 °C.