光致发光
钙钛矿(结构)
材料科学
卤化物
光谱学
纳米技术
纳米晶
铯
粒子(生态学)
化学物理
光电子学
化学
无机化学
结晶学
物理
地质学
海洋学
量子力学
作者
Yiqun Jiang,Beiye Li,Tianxiang Zhang,Yumeng Shi,Qing‐Hua Xu
出处
期刊:ChemNanoMat
[Wiley]
日期:2020-01-16
卷期号:6 (3): 327-335
被引量:19
标识
DOI:10.1002/cnma.201900690
摘要
Abstract Metal halide perovskites (MHPs) are promising materials for a range of optoelectronic applications owing to their unique structures and optical properties. The photoluminescence (PL) property of MHPs is crucial for their applications. All‐inorganic MHPs such as CsPbBr 3 , CsPb 2 Br 5 and Cs 4 PbBr 6 , have been widely investigated due to their high PL quantum yield (QY). However, the PL mechanisms of these perovskites still remain controversial and lack a unifying explanation. In this review, we have summarized the recent efforts to reveal the emission process of all‐inorganic cesium lead bromide perovskites nanocrystals (NCs) by utilizing single particle spectroscopy. The recent research advances on the understanding of exciton nature in CsPbBr 3 and PL emission originating from intrinsic point defects or impurity CsPbBr 3 phase in CsPb 2 Br 5 and Cs 4 PbBr 6 are summarized. Understanding the relationship between the structure and associated PL property of MHPs paves the way for their potential applications.
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