Lu Lei, Pan Xiong, Luo Junhua, Sun Zhihua
College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P.R. China.
College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350007, P.R. China.
Chemistry. 2020 Dec 18;26(71):16975-16984. doi: 10.1002/chem.202000788. Epub 2020 Sep 23.
Organic-inorganic metal halide perovskites (most notably CH NH PbI ) have demonstrated remarkable physical attributes for photovoltaic and diverse optoelectronic applications, whereas concerns about toxicity owing to the use of lead in the chemical composition still motivate further exploration of new, nontoxic candidates. Lead-free halide double perovskites (HDPs), designed by the rational chemical substitution of Pb with other nontoxic candidate elements, have recently attracted interest as a fascinating alternative to their Pb-based counterparts. Herein, recent advances in crystal structures, physical properties, and versatile optoelectronic applications of lead-free HDPs, such as solar cells, photodetectors, X-ray detectors, and light-emitting diodes, are reviewed. Perspectives to improve the physical and photoelectric properties of existing HDP materials are also discussed and will favor future development of new, lead-free HDP candidates.
有机-无机金属卤化物钙钛矿（最显著的是CH₃NH₃PbI₃）已在光伏及各种光电器件应用中展现出卓越的物理特性，然而，由于其化学成分中使用了铅而引发的毒性问题，仍促使人们进一步探索新型无毒候选材料。通过用其他无毒候选元素合理化学取代铅而设计的无铅卤化物双钙钛矿（HDPs），近来作为基于铅的同类材料的一种引人关注的替代物而受到青睐。本文综述了无铅HDPs在晶体结构、物理性质以及诸如太阳能电池、光电探测器、X射线探测器和发光二极管等多种光电器件应用方面的最新进展。还讨论了改善现有HDP材料物理和光电性能的前景，这将有利于新型无铅HDP候选材料的未来发展。
