Controlled synthesis, formation mechanism and upconversion luminescence of NaYF4: Yb, Er nano-/submicrocrystals via ionothermal approach
Controlled synthesis, formation mechanism and upconversion luminescence of NaYF4: Yb, Er nano-/submicrocrystals via ionothermal approach
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通过电离热方法控制 NaYF4: Yb, Er 纳米/亚微晶的合成、形成机制和上转换发光
DOI:
10.1016/j.jssc.2012.01.058
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发表时间:
2012-06
影响因子:
3.3
通讯作者:
Zhang, Hong
中科院分区:
文献类型:
--
作者:
Liu, Jia;Liu, Xiaomin;Kong, Xiangui;Zhang, Hong
In order to deepen the fundamental understanding of IL-mediated synthesis of nano-/submicrostructure, hydrophilic ILs ([Emim][BF4], [Bmim][BF4] and [Omim][BF4]), which act as solvents, templates, as well as fluorine source, have been employed to synthesize rare earth doped NaYF4upconversion nano-/submicrocrystals (UC-NMCs). The imidazolium cations provide the capping reagent to prevent the nucleation centers from aggregation and growing, while the tetrafluoroborate anions introduce a new fluorine source according to partial hydrolysis. It is demonstrated that the properties of IL, such as viscosity, polarity, solvency and interfacial tension, extremely affect the dissolution, diffusion and nucleation process of lanthanide ions in IL. Morphology and size of the final products can thus be tailored by synthetical parameters, like imidazolium cations, cosolvents, Ln3+and fluoride concentrations, as well as ionothermal time. Based on the experimental results, the possible mechanism of the nucleation and growth of UC-NMCs in IL is discussed.
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影响因子:
6.2
作者:
M. D. Mathews;B. Ambekar;A. K. Tyagi;J. Köhler
通讯作者:
M. D. Mathews;B. Ambekar;A. K. Tyagi;J. Köhler
影响因子:
6.2
作者:
N. Martin;P. Boutinaud;M. Malinowski;R. Mahiou;J. Cousseins
通讯作者:
N. Martin;P. Boutinaud;M. Malinowski;R. Mahiou;J. Cousseins
DOI:
10.1002/chin.200844242
发表时间:
2008-10
期刊:
ChemInform
影响因子:
--
作者:
P. Hapiot;C. Lagrost
通讯作者:
P. Hapiot;C. Lagrost
影响因子:
17.1
作者:
Fan Zhang;Dongyuan Zhao
通讯作者:
Fan Zhang;Dongyuan Zhao
影响因子:
--
作者:
Guofeng Wang;Q. Peng;Yadong Li
通讯作者:
Guofeng Wang;Q. Peng;Yadong Li