Quasi-solid-state dye-sensitized solar cells employing ternary component polymer-gel electrolytes
Quasi-solid-state dye-sensitized solar cells employing ternary component polymer-gel electrolytes
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DOI：
10.1016/j.jpowsour.2008.02.087
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发表时间：
2008-06-01
影响因子：
9.2
通讯作者：
Lee, Ji-Won
中科院分区：
文献类型：
--
作者：
Kang, Moon-Sung;Ahn, Kwang-Soon;Lee, Ji-Won
三元组分聚合物凝胶电解质旨在促进高粘度介质中的离子传输，并在染料敏化太阳能电池（DSSC）中更有效地利用入射光。采用具有多种分子尺寸分布的聚醚作为溶剂和TiO2纳米颗粒作为填料来制备聚合物凝胶电解质。使用电化学分析（例如离子电导率和扩散系数测量）系统地研究电解质的离子传输特性。通过测量激光诱导的光电压和光电流瞬态响应、入射光子电流效率（IPCE）和电流-电压（I-V）曲线，研究了电解质成分对光阳极电子传输的影响。由于纳米填料显着改善的离子传输和良好的光散射效果，优化的聚合物凝胶电解质大大提高了能量转换效率（即1太阳时为7.2%）。 (C) 2008 Elsevier B.V. 保留所有权利。
Ternary component polymer-gel electrolytes are designed to facilitate ion transport in a highly viscous medium and utilize incident light more efficiently in dye-sensitized solar cells (DSSCs). Polyethers with multiple molecular size distributions are employed as solvents and TiO2 nanoparticles as a filler to prepare the polymer-gel electrolytes. The ion transport properties of the electrolytes are systematically investigated using electrochemical analyses such as ion conductivity and diffusion coefficient measurements. The influences of the electrolyte components on the electron transport in photoanodes are also investigated by measuring the laser-induced photovoltage and photocurrent transient response, incident photon-to-current efficiency (IPCE), and current-voltage (I-V) curves. The optimized polymer-gel electrolyte results in greatly enhanced energy conversion efficiency (i.e., 7.2% at 1 sun) due to the significantly improved ion transport and good light-scattering effect of the nanofillers. (C) 2008 Elsevier B.V. All rights reserved.