提高整体光电转换效率的染料敏化太阳能电池电学建模

Swati Sahu
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引用次数: 1

摘要

基于电子、碘离子(I-)、三碘离子(I3-)和阳离子的连续性和输运方程,推导了染料敏化太阳能电池(DSSC)的电学模型。该器件模型包括一个伪均质活性层,其中太阳能光伏效应包括电子在纳米多孔TiO2层中的扩散以及电解质中的离子发生,以及一个体电解质层,其中仅发生离子扩散。研究了在开路和短路两种工况下,电子、碘离子和三碘离子随DSSC活性层厚度的分布规律。通过参数化研究分析了三种不同孔隙率和不同TiO2层厚度的DSSC的(J-V)特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electrical Modeling of Dye-Sensitized Solar Cells for Improving the Overall Photoelectric Conversion Efficiency
An electrical model of dye-sensitized solar cell (DSSC) is derived on continuity and transport equations for all the four charged species i.e. electrons, iodide ions (I-), triiodide ions (I3-) and cations. The device model comprises of a pseudo-homogeneous active layer, where solar photovoltaic effect including both diffusion of electrons in nanoporous TiO2 layer as well as ions in electrolyte occur, and a bulk electrolyte layer, where only ions diffuse take place. The distribution of the electrons, iodide and tri-iodide ions as function of the pseudo-homogeneous active layer thickness of the DSSC under both the open-circuit and short-circuit operation conditions were performed. Parametric studies were conducted to analyze (J–V) characteristic of the DSSC with three different sets of porosity and also for different sets of TiO2 layer thicknesses.
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