期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 11, 期 14, 页码 5517-5530出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.0c01378
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资金
- National Natural Science Foundation of China [11774318, 61935009]
- Support Program for Scientific and Technological Innovation Talents of Higher Education in Henan Province [19HASTIT017]
Recently, newly emerging lead halide perovskites have attracted great attention as a new class of light emitters in luminescent devices because of their superior photoluminescence quantum yield, adjustable emission wavelength, high charge-carrier transport ability, and low-temperature processing technique. However, the poor stability and lead toxicity of such materials severely restrict their practical applications and future commercialization. Therefore, recent efforts have been devoted to developing lead-free metal halide perovskites and their derivatives to address the above hurdles. In this Perspective, we first review the recent progress on the lead-free metal halide materials and their optical properties. We then discuss the stability issues of lead-free perovskites against heat, ultraviolet light, oxygen, and moisture. Further, we give a demonstration of the preliminary achievements and limitations in lead-free material-based light-emitting devices. Finally, we present current existing challenges and possible development opportunities in this field based on lead-free material systems.
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