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首页> 外文期刊>Advanced Functional Materials >In Situ Observation of Crystallization Dynamics and Grain Orientation in Sequential Deposition of Metal Halide Perovs kites
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In Situ Observation of Crystallization Dynamics and Grain Orientation in Sequential Deposition of Metal Halide Perovs kites

机译：金属卤化物Perovs风筝顺序沉积的结晶动力学和晶粒取向的原位观察

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摘要

Metal halide perovskites have revolutionized the development of highly efficient, solution-processable solar cells. Further advancements rely on improving perovskite film qualities through a better understanding of the underlying growth mechanism. Here, a systematic in situ grazing-incidence X-ray diffraction investigation is performed, facilitated by other techniques, on the sequential deposition of formamidinium lead iodide (FAPbI(3))-based perovskite films. The active chemical reaction, composition distribution, phase transition, and crystal grain orientation are all visualized following the entire perovskite formation process. Furthermore, the influences of additive ions on the crystallization speed, grain orientation, and morphology of FAPbI(3)-based films, along with their photovoltaic performances, are fully evaluated and optimized, which leads to highly reproducible and efficient perovskite solar cells. The findings provide key insights into the perovskite growth mechanism and suggest the fabrication of high-quality perovskite films for widespread optoelectronic applications.
机译：金属卤化物钙钛矿彻底改变了高效，可溶液处理的太阳能电池的开发。进一步的进步取决于通过更好地了解潜在的生长机理来提高钙钛矿膜的质量。在这里，对甲ami基碘化铅（FAPbI（3））基钙钛矿膜的顺序沉积，在其他技术的帮助下，进行了系统的原位掠入射X射线衍射研究。在整个钙钛矿形成过程之后，都可以看到活性化学反应，组成分布，相变和晶粒取向。此外，完全评估和优化了添加离子对FAPbI（3）基薄膜的结晶速度，晶粒取向和形态的影响以及它们的光伏性能，从而导致了高可重复性和高效的钙钛矿太阳能电池。这些发现为钙钛矿的生长机理提供了重要的见识，并建议制造用于广泛光电应用的高质量钙钛矿膜。

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  • 来源
    《Advanced Functional Materials》 |2019年第35期|1902319.1-1902319.12|共12页
  • 作者

    Meng Ke; Wang Xiao; Xu Qiaofei; Li Zhimin; Liu Zhou; Wu Longlong; Hu Youdi; Liu Ning; Chen Gang;

  • 作者单位

    ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China;

    ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China;

    ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China;

    Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China;

    ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China;

    ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China;

    ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China;

    Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China;

    ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China|Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    GI-XRD; in situ; perovskite solar cells; sequential deposition;

    机译：GI-XRD;原位;钙钛矿太阳能电池;顺序沉积;

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