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
发表期刊JOURNAL OF PHYSICAL CHEMISTRY LETTERS
ISSN1948-7185
卷号8期号:13页码:3115-3121
文章类型期刊论文
摘要Understanding 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.
关键词Cesium Lead Halide Perovskite Nanoplatelets Cdse Nanocrystals Dots Size Luminescent Growth Nanowires Emission Dynamics
DOI10.1021/acs.jpclett.7b01083
关键词[WOS]CESIUM LEAD HALIDE ; PEROVSKITE NANOPLATELETS ; CDSE NANOCRYSTALS ; DOTS ; SIZE ; LUMINESCENT ; GROWTH ; NANOWIRES ; EMISSION ; DYNAMICS
收录类别SCI
语种英语
WOS记录号WOS:000405252600053
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28673
专题中科院上海应用物理研究所2011-2018年
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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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