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Influence on open-circuit voltage by optical heterogeneity in three-dimensional organic photovoltaics

机译：光学异质性对三维有机光伏中开路电压的影响

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摘要

In three-dimensional photovoltaic architectures, heterogeneous optical intensity distributions throughout the structure may generally lead to modifications to the short circuit current density (Jsc), open-circuit voltage (Voc), and fill factor (FF). In this work an equivalent circuit model has been developed to examine the impact on Voc by heterogeneous and homogeneous internal illumination. The model has been tested against data from planar cell and tube-based solar cells that utilize poly-(3-hexylthiophene): phenyl C61 butyric acid methyl ester (P3HT:PCBM). This has further been extended to predict optimum optical design for tube-based geometries in which organic photoconversion materials have been applied in both fabrication conditions. The result is that for such geometries to provide the best overall optical confinement and best power conversion performance, aspect ratios must be between 1 and 5. The resulting structure leads to best light capture together with best overall internal partitioning of optical power to achieve the highest possible Voc.
机译：在三维光伏架构中，整个结构中的异质光强度分布通常会导致对短路电流密度（Jsc），开路电压（Voc）和填充系数（FF）的修改。在这项工作中，已经开发出等效电路模型来检查异质和均匀内部照明对Voc的影响。该模型已针对使用聚（3-己基噻吩）：苯基C61丁酸甲酯（P3HT：PCBM）的平面电池和管式太阳能电池的数据进行了测试。这已进一步扩展到预测基于管的几何形状的最佳光学设计，其中在两种制造条件下均已应用有机光转换材料。结果是，要使此类几何图形提供最佳的整体光学限制和最佳的功率转换性能，长宽比必须在1到5之间。所得结构可导致最佳的光捕获以及最佳的整体内部光功率分配，以实现最高的功率可能的VOC。

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  • 来源
    《Physical review》 |2011年第8期|p.085206.1-085206.6|共6页
  • 作者

    Yuan Li; Mingjun Wang; Huihui Huang; Wanyi Nie; Qi Li; Eric D. Peterson; Robert Coffin; Guojia Fang; David L. Carroll;

  • 作者单位

    Center for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA;

    Center for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA,Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Department of Electronic Science and Technology,School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, P. R. China;

    Center for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA,Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Department of Electronic Science and Technology,School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, P. R. China;

    Center for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA;

    Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA;

    Center for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA;

    Center for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA;

    Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Department of Electronic Science and Technology,School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, P. R. China;

    Center for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA;

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  • 正文语种 eng
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  • 关键词

    photoconduction and photovoltaic effects;

    机译：光电导和光电效应;

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