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Disentangling the Luminescent Mechanism of Cs4PbBr6 Single Crystals from an Ultrafast Dynamics Perspective
Liu, Rui-Tong1; Zhai, Xin-Ping1; Zhu, Zhi-Yuan1; Sun, Bing1; Liu, Duan-Wu1; Ma, Bo1; Zhang, Ze-Qi1; Sun, Chun-Lin1; Zhu, Bing-Li2; Zhang, Xiao-Dong3; Wang, Qiang1; Zhang, Hao-Li1
作者部门空间科学微光探测技术研究室
2019-11-07
发表期刊JOURNAL OF PHYSICAL CHEMISTRY LETTERS
ISSN1948-7185
卷号10期号:21页码:6572-6577
产权排序2
摘要

New all-inorganic perovskites like Cs4PbBr6 provide rich luminescent tools and particularly novel physical insights, including their zero-dimensional structure and controversial emitting mechanism. The ensuing debate over the origin of the luminescence of Cs4PbBr6 inspired us to tackle the issue through fabricating high-quality Cs4PbBr6 single crystals and employing ultrafast dynamics study. Upon photoexcitation, Cs4PbBr6 underwent dynamics steps distinct from that of CsPbBr3, including exciton migration to the defect level on a time scale of several hundred femtoseconds, exciton relaxation within the defect states on the picosecond time scale, and exciton recombination from the subnanosecond to nanosecond time scale. The observation disclosed that crystal defects of Cs4PbBr6 induced green emission while CsPbBr3 mainly relied on quantum confinement to emit at room temperature. The study provides an in-depth understanding of the photoinduced multistep dynamics steps of Cs4PbBr6 associated with display and photovoltaic applications, establishing Cs4PbBr6 as a new candidate for uses associated with the perovskite family of materials.

DOI10.1021/acs.jpclett.9b02590
收录类别SCI
语种英语
WOS记录号WOS:000495805100021
出版者AMER CHEMICAL SOC
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊亚洲彩票app下载
条目标识符/handle/181661/31928
专题空间科学微光探测技术研究室
作者单位1.Lanzhou Univ, Key Lab Nonferrous Met Chem & Resources Utilizat, Key Lab Special Funct Mat & Struct Design, Coll Chem & Chem Engn,Minist Educ,SKLAOC, Lanzhou 730000, Gansu, Peoples R China
2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Shaanxi, Peoples R China
3.Natl Key Lab Mat Behav & Evaluat Technol Space En, Harbin 150001, Heilongjiang, Peoples R China
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Liu, Rui-Tong,Zhai, Xin-Ping,Zhu, Zhi-Yuan,et al. Disentangling the Luminescent Mechanism of Cs4PbBr6 Single Crystals from an Ultrafast Dynamics Perspective[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2019,10(21):6572-6577.
APA Liu, Rui-Tong.,Zhai, Xin-Ping.,Zhu, Zhi-Yuan.,Sun, Bing.,Liu, Duan-Wu.,...&Zhang, Hao-Li.(2019).Disentangling the Luminescent Mechanism of Cs4PbBr6 Single Crystals from an Ultrafast Dynamics Perspective.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,10(21),6572-6577.
MLA Liu, Rui-Tong,et al."Disentangling the Luminescent Mechanism of Cs4PbBr6 Single Crystals from an Ultrafast Dynamics Perspective".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 10.21(2019):6572-6577.
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