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Issue 41, 2017
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Insights into the growth mechanism of REF3 (RE = La–Lu, Y) nanocrystals: hexagonal and/or orthorhombic

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Abstract

The synthesis of REF3 (RE = La–Lu, Y) nanocrystals with controlled phase structures has so far remained a challenge. Herein we have developed a one-for-all synthetic procedure that allows the successful synthesis of REF3 nanocrystals in a controlled manner. Experimental results showed that the radius of RE ions determines the phase structure: pure hexagonal REF3 (RE = La–Eu), a mixture of hexagonal and orthorhombic REF3 (RE = Gd), and pure orthorhombic REF3 (RE = Tb–Lu, Y) nanocrystals are obtained along with the decrease of the ionic radius. As Gd is positioned exactly in the middle of the lanthanides row, GdF3 nanocrystals were used as a model to further investigate how the molar ratio of F : Gd3+, the doping of RE ions with different ionic radii, and the doping concentration of certain RE ions affects the crystal structure of the final product.

Graphical abstract: Insights into the growth mechanism of REF3 (RE = La–Lu, Y) nanocrystals: hexagonal and/or orthorhombic

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Publication details

The article was received on 20 Aug 2017, accepted on 27 Sep 2017 and first published on 28 Sep 2017


Article type: Paper
DOI: 10.1039/C7NR06210A
Citation: Nanoscale, 2017,9, 15974-15981
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    Insights into the growth mechanism of REF3 (RE = La–Lu, Y) nanocrystals: hexagonal and/or orthorhombic

    J. Xie, Z. Gao, E. Zhou, X. Cheng, Y. Wang, X. Xie, L. Huang and W. Huang, Nanoscale, 2017, 9, 15974
    DOI: 10.1039/C7NR06210A

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