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首页> 外文期刊>Advanced energy materials >Enhanced Efficiency of Hot-Cast Large-Area Planar Perovskite Solar Cells/Modules Having Controlled Chloride Incorporation
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Enhanced Efficiency of Hot-Cast Large-Area Planar Perovskite Solar Cells/Modules Having Controlled Chloride Incorporation

机译：具有受控氯化物掺入的热铸大面积平面钙钛矿太阳能电池/组件的效率提高

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摘要

Organic-inorganic perovskite photovoltaics are an emerging solar technology. Developing materials and processing techniques that can be implemented in large-scale manufacturing is extremely important for realizing the potential of commercialization. Here we report a hot-casting process with controlled Cl- incorporation which enables high stability and high power-conversion-efficiencies (PCEs) of 18.2% for small area (0.09 cm(2)) and 15.4% for large-area (approximate to 1 cm(2)) single solar cells. The enhanced performance versus tri-iodide perovskites can be ascribed to longer carrier diffusion lengths, improved uniformity of the perovskite film morphology, favorable perovskite crystallite orientation, a halide concentration gradient in the perovskite film, and reduced recombination by introducing Cl-. Additionally, Cl- improves the device stability by passivating the reaction between I- and the silver electrode. High-quality thin films deployed over a large-area 5 cm x 5 cm eight-cell module have been fabricated and exhibit an active-area PCE of 12.0%. The feasibility of material and processing strategies in industrial large-scale coating techniques is then shown by demonstrating a dip-coating process which shows promise for large throughput production of perovskite solar modules.
机译：有机-无机钙钛矿光伏是一种新兴的太阳能技术。开发可在大规模生产中实施的材料和加工技术对于实现商业化潜力极为重要。在这里，我们报告了一种具有受控Cl掺入的热铸工艺，该工艺可实现小面积（0.09 cm（2））为18.2％的高稳定性和高功率转换效率（PCE），大面积为15.4％（大约为1 cm（2））单个太阳能电池。与三碘化物钙钛矿相比，性能的提高可归因于更长的载流子扩散长度，钙钛矿薄膜形态改善的均匀性，良好的钙钛矿微晶取向，钙钛矿薄膜中的卤化物浓度梯度以及通过引入Cl-减少的重组。另外，Cl-通过钝化I-和银电极之间的反应来改善器件稳定性。已制造出在5厘米x 5厘米大面积8单元模块上部署的高质量薄膜，其有源面积PCE为12.0％。然后，通过演示浸涂工艺来证明材料和加工策略在工业大规模涂装技术中的可行性，该浸涂工艺表明了钙钛矿型太阳能电池组件大批量生产的希望。

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  • 来源
    《Advanced energy materials》 |2017年第8期|1601660.1-1601660.9|共9页
  • 作者

    Liao Hsueh-Chung; Guo Peijun; Hsu Che-Pu; Lin Ma; Wang Binghao; Zeng Li; Huang Wei; Soe Chan Myae Myae; Su Wei-Fang; Bedzyk Michael J.; Wasielewski Michael R.; Facchetti Antonio; Chang Robert P. H.; Kanatzidis Mercouri G.; Marks Tobin J.;

  • 作者单位

    Northwestern Univ, Dept Chem, Evanston, IL 60208 USA|FrontMat Corp Ltd, Taipei 10087, Taiwan|Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Evanston, IL 60208 USA;

    Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Evanston, IL 60208 USA|Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA;

    FrontMat Corp Ltd, Taipei 10087, Taiwan|Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 10617, Taiwan;

    Northwestern Univ, Dept Chem, Evanston, IL 60208 USA|Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Evanston, IL 60208 USA;

    Northwestern Univ, Dept Chem, Evanston, IL 60208 USA;

    Northwestern Univ, Appl Phys Program, Evanston, IL 60208 USA|Northwestern Univ, Mat Res Ctr, Evanston, IL 60208 USA;

    Northwestern Univ, Dept Chem, Evanston, IL 60208 USA;

    Northwestern Univ, Dept Chem, Evanston, IL 60208 USA|Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Evanston, IL 60208 USA;

    Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 10617, Taiwan;

    Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA|Northwestern Univ, Appl Phys Program, Evanston, IL 60208 USA|Northwestern Univ, Mat Res Ctr, Evanston, IL 60208 USA;

    Northwestern Univ, Dept Chem, Evanston, IL 60208 USA|Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Evanston, IL 60208 USA;

    Northwestern Univ, Dept Chem, Evanston, IL 60208 USA|Polyera Corp, Skokie, IL 60077 USA;

    Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Evanston, IL 60208 USA|Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA;

    Northwestern Univ, Dept Chem, Evanston, IL 60208 USA|Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Evanston, IL 60208 USA;

    Northwestern Univ, Dept Chem, Evanston, IL 60208 USA|Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Evanston, IL 60208 USA;

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  • 正文语种 eng
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  • 关键词

    hot-casting; perovskite solar cells; power conversion efficiency; solution process;

    机译：热铸;钙钛矿型太阳能电池;功率转换效率;溶解工艺;

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