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Composition Engineering in Doctor-Blading of Perovskite Solar Cells

机译：钙钛矿太阳能电池刮刀的组成工程

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摘要

Organic-inorganic halide perovskite (OIHP) solar cells with efficiency over 18% power conversion efficiency (PCE) have been widely achieved with lab scale spin-coating method which is however not scalable for the fabrication of large area solar panels. The PCEs of OIHP solar cells made by scalable deposition methods, such as doctor-blading or slot-die coating, have been lagging far behind than spin-coated devices. In this study the authors report composition engineering in doctor-bladed OIHP solar cells with p-i-n planar hetero-junction structure to enhance their efficiency. Phase purer OIHP thin films are obtained by incorporating a small amount of cesium (Cs+) and bromine (Br-) ions into perovskite precursor solution, which also reduces the required film formation temperature. Pinhole free OIHP thin films with micrometer-sized grains have been obtained assisted by a secondary grain growth with added methylammonium chloride into the precursor solution. The OIHP solar cells using these bladed thin films achieved PCEs over 19.0%, with the best stabilized PCE reaching 19.3%. This represents a significant step toward scalable manufacture of OIHP solar cells.
机译：效率超过18％的功率转换效率（PCE）的有机-无机卤化物钙钛矿（OIHP）太阳能电池已经通过实验室规模的旋涂方法获得了广泛的应用，但该方法无法用于制造大面积太阳能电池板。通过可扩展的沉积方法（例如刮刀涂布或狭缝模头涂布）制造的OIHP太阳能电池的PCE远远落后于旋涂设备。在这项研究中，作者报告了具有p-i-n平面异质结结构的刮刀OIHP太阳能电池的成分工程，以提高其效率。通过将少量的铯（Cs +）和溴（Br-）离子掺入钙钛矿前体溶液中，可以获得纯度更高的OIHP薄膜，这也降低了所需的成膜温度。通过在前驱体溶液中添加甲基氯化铵进行二次晶粒生长，已经获得了具有微米级晶粒的无针孔OIHP薄膜。使用这些刀片状薄膜的OIHP太阳能电池的PCE超过19.0％，最佳的稳定PCE达到19.3％。这是朝着可扩展的OIHP太阳能电池制造迈出的重要一步。

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  • 来源
    《Advanced energy materials》 |2017年第18期|1700302.1-1700302.7|共7页
  • 作者

    Tang Shi; Deng Yehao; Zheng Xiaopeng; Bai Yang; Fang Yanjun; Dong Qingfeng; Wei Haotong; Huang Jinsong;

  • 作者单位

    Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA;

    Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA;

    Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA;

    Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA;

    Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA;

    Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA;

    Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA;

    Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA|Univ N Carolina, Dept Appl Physiccal Sci, Chapel Hill, NC 27599 USA;

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  • 正文语种 eng
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  • 关键词

    composition engineering; doctor-blading; perovskite solar cells;

    机译：成分工程;博士刀片;钙钛矿太阳能电池;

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