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Great Disparity in Photoluminesence Quantum Yields of Colloidal CsPbBr3 Nanocrystals with Varied Shape: The Effect of Crystal Lattice Strain
Zhao, JT; Liu, M; Fang, L; Jiang, SL; Zhou, JT; Ding, HY; Huang, HW; Wen, W; Luo, ZL; Zhang, Q; Wang, XP; Gao, C
2017
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY LETTERS
ISSN1948-7185
Volume8Issue:13Pages:3115-3121
Subtype期刊论文
AbstractUnderstanding the big discrepancy in the photoluminesence quantum yields (PLQYs) of nanoscale colloidal materials with varied morphologies is of great significance to its property optimization and functional application. Using different shaped CsPbBr3 nanocrystals with the same fabrication processes as model, quantitative synchrotron radiation X-ray diffraction analysis reveals the increasing trend in lattice strain values of the nanocrystals: nanocube, nanoplate, nanowire. Furthermore, transient spectroscopic measurements reveal the same trend in the defect quantities of these nanocrystals. These experimental results unambiguously point out that large lattice strain existing in CsPbBr3 nanoparticles induces more crystal defects and thus decreases the PLQY, implying that lattice strain is a key factor other than the surface defect to dominate the PLQY of colloidal photoluminesence materials.
KeywordCesium Lead Halide Perovskite Nanoplatelets Cdse Nanocrystals Dots Size Luminescent Growth Nanowires Emission Dynamics
DOI10.1021/acs.jpclett.7b01083
WOS KeywordCESIUM LEAD HALIDE ; PEROVSKITE NANOPLATELETS ; CDSE NANOCRYSTALS ; DOTS ; SIZE ; LUMINESCENT ; GROWTH ; NANOWIRES ; EMISSION ; DYNAMICS
Indexed BySCI
Language英语
WOS IDWOS:000405252600053
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28673
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Zhao, JT,Liu, M,Fang, L,et al. Great Disparity in Photoluminesence Quantum Yields of Colloidal CsPbBr3 Nanocrystals with Varied Shape: The Effect of Crystal Lattice Strain[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2017,8(13):3115-3121.
APA Zhao, JT.,Liu, M.,Fang, L.,Jiang, SL.,Zhou, JT.,...&Gao, C.(2017).Great Disparity in Photoluminesence Quantum Yields of Colloidal CsPbBr3 Nanocrystals with Varied Shape: The Effect of Crystal Lattice Strain.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,8(13),3115-3121.
MLA Zhao, JT,et al."Great Disparity in Photoluminesence Quantum Yields of Colloidal CsPbBr3 Nanocrystals with Varied Shape: The Effect of Crystal Lattice Strain".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 8.13(2017):3115-3121.
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