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首页> 外文期刊>Advanced energy materials >Aerosol OT/Water System Coupled with Triiodide/lodide (I_3~-/I~-) Redox Electrolytes for Highly Efficient Dye-Sensitized Solar Cells
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Aerosol OT/Water System Coupled with Triiodide/lodide (I_3~-/I~-) Redox Electrolytes for Highly Efficient Dye-Sensitized Solar Cells

机译：气溶胶OT /水系统与三碘化物/碘化物（I_3〜-/ I〜-）氧化还原电解质结合，用于高效染料敏化太阳能电池

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摘要

Dye-sensitized solar ceils (DSCs) are considered to be a promising alternative to Si-based photovoltaic cells. The electrolyte of the DSC primarily uses triiodide/iodide (I_3~- /I~-) as a redox couple. Therefore, it is essential to understand the regeneration and recombination kinetics of the I_3~- /I~- redox couples in the device. In this context, controlling the total and local concentrations of the I_3~- /I~- redox couples is an important parameter that can influence the DSC performance. Here, we propose that the introduction of a sodium bis (2-eth-ylhexyl) sulfosuccinate (AOT)/water system to the I_3~- /I~- electrolyte enables the control of the concentration of the redox couples, which consequently achieves a high power conversion efficiency of～11% for ～1000 h (under 1 sun illumination) owing to the enhanced dye-regeneration efficiency and the reduced recombination rate. This novel concept assists in the comprehension of the regeneration and recombination kinetics and develops highly efficient DSCs.
机译：染料敏化太阳能电池（DSC）被认为是硅基光伏电池的有前途的替代品。 DSC的电解质主要使用三碘化物/碘化物（I_3〜-/ I〜-）作为氧化还原对。因此，必须了解器件中I_3〜-/ I〜-氧化还原对的再生和重组动力学。在这种情况下，控制I_3〜-/ I〜-氧化还原对的总浓度和局部浓度是可以影响DSC性能的重要参数。在这里，我们建议将双（2-乙基-己基己基）磺基琥珀酸钠（AOT）/水系统引入I_3〜-/ I〜-电解质可以控制氧化还原对的浓度，从而实现由于提高了染料的再生效率和降低了重组率，因此在约1000 h（在1个日光照射下）可实现约11％的高功率转换效率。这个新颖的概念有助于理解再生和重组动力学，并开发出高效的DSC。

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  • 来源
    《Advanced energy materials》 |2013年第10期|1344-1350|共7页
  • 作者

    Eui-Hyun Kong; Jongchul Lim; Yong-June Chang; Yeon-Hee Yoon; Taiho Park; Hyun Myung Jang;

  • 作者单位

    Department of Materials Science and Engineering, and Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) Pohang 790-784, Republic of Korea;

    Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 790-784, Republic of Korea;

    Department of Materials Science and Engineering, and Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) Pohang 790-784, Republic of Korea;

    Department of Materials Science and Engineering, and Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) Pohang 790-784, Republic of Korea;

    Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 790-784, Republic of Korea;

    Department of Materials Science and Engineering, and Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) Pohang 790-784, Republic of Korea;

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