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首页> 外文期刊>Advanced energy materials >Triple-Layer Structured Composite Separator Membranes with Dual Pore Structures and Improved Interfacial Contact for Sustainable Dye-Sensitized Solar Cells
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Triple-Layer Structured Composite Separator Membranes with Dual Pore Structures and Improved Interfacial Contact for Sustainable Dye-Sensitized Solar Cells

机译：具有双孔结构和改进的界面接触的三层结构复合隔膜，用于可持续的染料敏化太阳能电池

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摘要

A composite separator membrane (CSM) with an A/B/A type layered structure, composed of a microporous electrolyte-philic poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) gel layer (A) and a submicrometer porous polyethylene (PE) or a macroporous poly(ethylene terephthalate) (PET) non-woven matrix (B), is introduced in a dye-sensitized solar cell (DSSC). Commercially available PE and PET separator membranes (SMs) act as matrices that provide mechanical stability to the DSSC and permanent pore structures for facilitated ion transport. PVdF-HFP is used as a microporous gelator for improved interfacial contact between the solid SM and the electrodes. The PVdF-HFP gel impedes the charge recombination process between electron and I3 − at the TiO2/electrolyte interface, resulting in improved electron lifetimes. The DSSC assembled with the CSM exhibits high initial solar energy conversion efficiency (η, 6.1%) and stable η values over 1400 h, demonstrating good long term stability. The behaviors of the DSSC are attributed to the synergistic factors of the CSM, such as improved ion conductivity, electrolyte affinity, electrolyte retention capability, effective interfacial contact, and plausible passivation of the dyes. This study demonstrates a practical combination of short- and long-term DSSC performance through the introduction of the CSM.
机译：具有A / B / A型层状结构的复合隔膜（CSM），由微孔电解质-亲氟聚偏二氟乙烯-六氟丙烯共聚物（PVdF-HFP）凝胶层（A）和亚微米级多孔聚乙烯（ PE）或大孔聚对苯二甲酸乙二醇酯（PET）非织造基质（B）被引入染料敏化太阳能电池（DSSC）中。市售的PE和PET隔离膜（SM）充当基质，可为DSSC和永久孔结构提供机械稳定性，以促进离子传输。 PVdF-HFP用作微孔胶凝剂，用于改善固体SM和电极之间的界面接触。 PVdF-HFP凝胶阻碍了TiO2 /电解质界面上电子与I3-之间的电荷复合过程，从而延长了电子寿命。与CSM组装在一起的DSSC在1400小时内显示出高的初始太阳能转换效率（η，6.1％）和稳定的η值，证明了良好的长期稳定性。 DSSC的行为归因于CSM的协同因素，例如改善的离子电导率，电解质亲和力，电解质保留能力，有效的界面接触以及染料的合理钝化。这项研究通过引入CSM演示了短期和长期DSSC性能的实用组合。

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  • 来源
    《Advanced energy materials》 |2014年第13期|1-8|共8页
  • 作者

    Soo Bong Hong; So Hyun Park; Jeong-Hoon Kim; Sang-Young Lee; Young Soo Kwon; Taiho Park; Phil-Hyun Kang; Sung Chul Hong;

  • 作者单位

    Faculty of Nanotechnology and Advanced Materials Engineering Sejong Polymer Research Center Sejong University Seoul Republic of Korea;

    Faculty of Nanotechnology and Advanced Materials Engineering Sejong Polymer Research Center Sejong University Seoul Republic of Korea;

    Interdisciplinary School of Green Energy Ulsan National Institute of Science and Technology Ulsan Republic of Korea;

    Interdisciplinary School of Green Energy Ulsan National Institute of Science and Technology Ulsan Republic of Korea;

    Department of Chemical Engineering Polymer Research Institute Pohang University of Science and Technology Pohang Republic of Korea;

    Department of Chemical Engineering Polymer Research Institute Pohang University of Science and Technology Pohang Republic of Korea;

    Radiation Research Division for Industry and Environment Korea Atomic Energy Institute Jeongeup-si Jeollabuk-do Republic of Korea;

    Faculty of Nanotechnology and Advanced Materials Engineering Sejong Polymer Research Center Sejong University Seoul Republic of Korea;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    dye-sensitized solar cells; porous materials; composite materials; separators; membranes;

    机译：染料敏化太阳能电池;多孔材料;复合材料;隔板;膜;

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