CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Structural Phase Transition and Photoluminescence Properties of YF3:Eu3+ Nanocrystals under High Pressure
Gong, C; Li, QJ; Liu, R; Hou, Y; Wang, JD; Dong, XT; Liu, B; Tan, X; Liu, J; Yang, K; Zou, B; Cui, T; Liu, BB; liubb@jlu.edu.cn
2014
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume118Issue:39Pages:22739—22745
AbstractHigh-pressure behaviors of YF3:Eu3+ nanocrystals with an average grain size of 40 nm were investigated by in situ high-pressure synchrotron radiation X-ray diffraction measurements up to 31.1 GPa at ambient temperature. The pressure-induced structural phase transition starts at 11.8 GPa and completes at 23.3 GPa. YF3:Eu3+ nanocrystals with a starting phase of orthorhombic structure transform into a high-pressure phase, which is inferred to be hexagonal structure. The high-pressure structure returned to the orthorhombic phase after release of pressure. The transition pressure is enhanced in nanosized YF3:Eu3+ as compared to submicrometer size samples, which is due to the surface energy differences between submicrometer size and nanosized materials. The nanosized samples of high-pressure phase were easier to compress with smaller bulk modulus than the submicrometer size samples. The photoluminescence properties of YF3:Eu3+ have also been studied in the pressure range from ambient pressure to 25.0 GPa at room temperature. Accompanied by the structure transformation, the Eu3+ ion luminescence from D-5(0) -> (7)F(1,2,3,44)transition in YF3:Eu3+ nanocrystals emerges obvious changes, which indicate the variation of the local symmetry of Eu3+ ions.
KeywordLn(3+)-doped Yf3 Nanocrystals Rare-earth Ions Up-conversion Luminescence Properties Single-crystals Laf3 Nanoparticles Compressibility Intensities Mechanism
Indexed BySCI
Language英语
WOS IDWOS:000342652000038
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/14418
Collection中科院上海应用物理研究所2011-2019年
Corresponding Authorliubb@jlu.edu.cn
Recommended Citation
GB/T 7714
Gong, C,Li, QJ,Liu, R,et al. Structural Phase Transition and Photoluminescence Properties of YF3:Eu3+ Nanocrystals under High Pressure[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2014,118(39):22739—22745.
APA Gong, C.,Li, QJ.,Liu, R.,Hou, Y.,Wang, JD.,...&liubb@jlu.edu.cn.(2014).Structural Phase Transition and Photoluminescence Properties of YF3:Eu3+ Nanocrystals under High Pressure.JOURNAL OF PHYSICAL CHEMISTRY C,118(39),22739—22745.
MLA Gong, C,et al."Structural Phase Transition and Photoluminescence Properties of YF3:Eu3+ Nanocrystals under High Pressure".JOURNAL OF PHYSICAL CHEMISTRY C 118.39(2014):22739—22745.
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