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Investigation of the fill factor of dye-sensitized solar cell based on ZnO nanowire arrays

机译：基于ZnO纳米线阵列的染料敏化太阳能电池填充因子的研究

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摘要

The fill factor of dye-sensitized solar cells based on the ZnO nanowire array is very low, which is usually ascribed to a rapid charge recombination. In this article, the influence on the fill factor of ZnO nanowire array cell is investigated and discussed by comparing dark current and decay rate of open circuit potential of the ZnO nanowire array cell with those of the ZnO nanoparticle cell, TiO_2 nanoparticle cell and TiO_2-coated ZnO nanowire array cell. The results demonstrate that the low fill factor of the ZnO nanowire array cell is largely caused by a rapid decrease of electron injection efficiency rather than a rapid charge recombination, which is decided by the absorption nature of Ru-complexed dye molecules on ZnO surface and repellency of radial electric field. The fill factor of the ZnO nanowire array cell can be improved by coating ZnO nanowires with a wide band gap semiconductor material or metal oxide insulator.
机译：基于ZnO纳米线阵列的染料敏化太阳能电池的填充因子非常低，通常归因于快速的电荷复合。在本文中，通过比较ZnO纳米线阵列电池，ZnO纳米线电池，TiO_2纳米电池和TiO_2-的暗电流和开路电位的衰减率，研究和讨论了对ZnO纳米线阵列电池的填充因子的影响。包覆的ZnO纳米线阵列电池。结果表明，ZnO纳米线阵列单元的低填充率主要是由于电子注入效率的快速下降而不是快速的电荷复合引起的，这取决于Ru复合染料分子在ZnO表面的吸收性质和排斥性径向电场。可以通过用宽带隙半导体材料或金属氧化物绝缘体涂覆ZnO纳米线来提高ZnO纳米线阵列单元的填充因子。

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  • 来源
    《Applied Surface Science》 |2011年第1期|p.321-326|共6页
  • 作者

    YongshuTian; Chenguo Hu; QingWu; Xiaohui Wu; XiaoyanLi; Muhammad Hashim;

  • 作者单位

    Physics Department, Chongqing University, Chongqing 400044, PR China, Chongqing Communication College, Chongqing 400035, PR China;

    Physics Department, Chongqing University, Chongqing 400044, PR China;

    Physics Department, Chongqing University, Chongqing 400044, PR China;

    Physics Department, Chongqing University, Chongqing 400044, PR China;

    Physics Department, Chongqing University, Chongqing 400044, PR China;

    Physics Department, Chongqing University, Chongqing 400044, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    dye-sensitized solar cell; fill factor; electron injection efficiency;

    机译：染料敏化太阳能电池填充因子电子注入效率;

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