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Progress of Lead-Free Halide Double Perovskites

机译：无铅卤化物双钙钛矿的研究进展

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摘要

The field of halide metal perovskite photovoltaics has caught widespread interest in the last decade. This is seen in the rapid rise of power conversion efficiency, which is currently over 23%. It has also stimulated a widespread application of halide metal perovskites in other fields, such as light-emitting diodes, field-effect transistors, detectors, and lasers. Despite the fascinating characteristics of the halide metal perovskites, the presence of toxic lead (Pb) in their chemical composition is regarded as one of the major limiting factors preventing their commercialization. Addressing the toxicity issues in these compounds by a careful and strategic replacement of Pb(2+ )with other nontoxic candidate elements represents a promising direction to fabricate lead-free optoelectronic devices. Such attempts yield a halide double perovskite structure which allows flexibility for various compositional adjustments. Here, the authors present the current progress and setbacks in crystal structures, materials preparation, optoelectronic properties, stability, and photovoltaic applications of lead-free halide double perovskite compounds. Prospective research directions to improve the optoelectronic properties of existing materials are given that may help in the discovery of new lead-free halide double perovskites.
机译：在过去的十年中，卤化物金属钙钛矿光电领域引起了广泛的兴趣。从功率转换效率的迅速提高中可以看出这一点，目前效率已超过23％。它还刺激了卤化金属钙钛矿在其他领域的广泛应用，例如发光二极管，场效应晶体管，检测器和激光器。尽管卤化金属钙钛矿具有令人着迷的特性，但在其化学成分中存在有毒铅（Pb）被视为阻碍其商业化的主要限制因素之一。通过用其他无毒候选元素仔细和战略性地替换Pb（2+）解决这些化合物中的毒性问题，代表了制造无铅光电器件的有希望的方向。这样的尝试产生了卤化物双钙钛矿结构，其为各种组成调整提供了灵活性。在这里，作者介绍了无铅卤化物双钙钛矿化合物的晶体结构，材料制备，光电性能，稳定性和光伏应用方面的当前进展和挫折。给出了改善现有材料光电性能的前瞻性研究方向，可能有助于发现新的无铅卤化物双钙钛矿。

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  • 来源
    《Advanced energy materials》 |2019年第12期|1803150.1-1803150.32|共32页
  • 作者

    Igbari Femi; Wang Zhao-Kui; Liao Liang-Sheng;

  • 作者单位

    Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China;

    Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China;

    Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    halide double perovskites; lead-free perovskites; photovoltaic devices;

    机译：卤化物双钙钛矿;无铅钙钛矿;光伏装置;

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