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Issue 8, 2018
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Phase segregation enabled scandium fluoride–lanthanide fluoride Janus nanoparticles

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Abstract

Janus particles, in which two distinct compositions are integrated, have attracted considerable interest for their potential multi-functionalities and synergistic effects. Although seed-mediated growth appears to be a suitable strategy that meets the stringent specifications for obtaining Janus particles, it is inapplicable to guide the growth of two crystalline components with different crystal structures. Herein, the formation of Janus particles via phase segregation is proposed. As proof-of-concept, promising photon conversion materials, ScF3 and lanthanide (Ln) fluorides, with great differences in structure, were chosen to build a series of Janus particles. Interestingly, using heavy (Lu, Yb, Dy and Tb) and light (Pr, Nd, Sm, Eu and Gd) lanthanides, ScF3–LiLnF4 and ScF3–LnF3 were formed, respectively. Time-dependent reaction studies indicate that phase segregation paves the way for the formation of these Janus nanoparticles (NPs), and this speculation is further confirmed by in situ transmission electron microscopy observations. These investigations provide new insights for the synthesis of heterostructured materials.

Graphical abstract: Phase segregation enabled scandium fluoride–lanthanide fluoride Janus nanoparticles

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Publication details

The article was received on 10 Apr 2018, accepted on 18 May 2018 and first published on 18 May 2018


Article type: Research Article
DOI: 10.1039/C8QI00328A
Citation: Inorg. Chem. Front., 2018,5, 1800-1804
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    Phase segregation enabled scandium fluoride–lanthanide fluoride Janus nanoparticles

    P. Zhang, R. Liu, L. Sun, H. Dong, L. Li, X. Zheng, K. Wu and C. Yan, Inorg. Chem. Front., 2018, 5, 1800
    DOI: 10.1039/C8QI00328A

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