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The Rise of Textured Perovskite Morphology: Revolutionizing the Pathway toward High-Performance Optoelectronic Devices

机译：钙钛矿质构形态的兴起：革新了高性能光电器件的发展途径

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摘要

Halide perovskite materials have achieved overwhelming success in various optoelectronic applications, especially perovskite solar cells and perovskite-based light-emitting diodes (P-LEDs), owing to their outstanding optical and electric properties. It is widely believed that flat and mirror-like perovskite films are imperative for achieving high device performance, while the potential of other perovskite morphologies, such as the emerging textured perovskite, is overlooked, which leaves plenty of room for further breakthroughs. Compared to flat and mirror-like perovskites, textured perovskites with unique structures, e.g., coral-like, maze-like, column-like or quasi-core@shell assemblies, are more efficient at light harvesting and charge extraction, thus revolutionizing the pathways toward ultrahigh performance in perovskite-based optoelectronic devices. Employing a textured perovskite morphology, the record of external quantum efficiency for P-LEDs is demonstrated as 21.6%. In this research news, recent progress in the utilization of textured perovskite is summarized, with the emphasis on the preparation strategies and prominent optoelectronic properties. The impact of the textured morphology on light harvesting, carrier dynamic management, and device performance is highlighted. Finally, the challenges and great potential of employing these innovative morphologies in fabricating more efficient optoelectronic devices, or creating a new energy harvesting and conversion regime are also provided.
机译：卤化物钙钛矿材料由于其出色的光学和电学性能，在各种光电应用中取得了压倒性的成功，尤其是钙钛矿太阳能电池和钙钛矿基发光二极管（P-LED）。人们普遍认为，平面和镜面钙钛矿膜对于实现高设备性能必不可少，而其他钙钛矿形态的潜力（例如新兴的纹理钙钛矿）却被忽略了，这为进一步突破留出了很大的空间。与平面钙钛矿和钙钛矿相比，具有独特结构（例如珊瑚状，迷宫状，圆柱状或准核@壳组合）的结构化钙钛矿在光收集和电荷提取方面效率更高，从而彻底改变了光路钙钛矿基光电器件的超高性能。利用织构的钙钛矿形态，P-LED的外部量子效率记录显示为21.6％。在此研究新闻中，总结了带纹理的钙钛矿利用的最新进展，重点是制备策略和突出的光电性能。强调了纹理形态对光收集，载流子动态管理和设备性能的影响。最后，还提供了在制造更高效的光电器件或创建新的能量收集和转换方案时采用这些创新形态的挑战和巨大潜力。

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  • 来源
    《Advanced energy materials》 |2020年第7期|1902256.1-1902256.10|共10页
  • 作者

    Zhong Jun-Xing; Wu Wu-Qiang; Liao Jin-Feng; Feng Wenhuai; Jiang Yong; Wang Lianzhou; Kuang Dai-Bin;

  • 作者单位

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Key Lab Bioinorgan & Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Key Lab Bioinorgan & Synthet Chem Guangzhou 510275 Guangdong Peoples R China|Univ Queensland Nanomat Ctr Sch Chem Engn Brisbane Qld 4072 Australia|Univ Queensland Australian Inst Bioengn & Nanotechnol Brisbane Qld 4072 Australia;

    Univ Queensland Nanomat Ctr Sch Chem Engn Brisbane Qld 4072 Australia|Univ Queensland Australian Inst Bioengn & Nanotechnol Brisbane Qld 4072 Australia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    charge extraction; LEDs; light harvesting; solar cells; textured perovskites;

    机译：电荷提取;LED;采光太阳能电池;钙钛矿;

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