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Issue 31, 2016
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Tuning the phase, morphology and size of monodisperse ScF3 and NaScF4 crystals through lanthanide doping

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Abstract

Monodisperse ScF3 and NaScF4 nano-/micro-crystals were prepared by a simple solvothermal method. There were many important factors including the molar ratio of Na/F/(Sc + Ln) and Ln3+ doping to control the synthesis of the products. A phase transformation from monoclinic ScF3 to hexagonal NaScF4 was observed with different molar ratios of Na/F/Sc. Herein, the products doped with 1% Ln3+ (La–Lu, except Pm) demonstrated abundant phases, morphologies and sizes. Moreover, the products with different Lu3+ doping concentrations from 1% to 60% were prepared. The results revealed that different kinds of 1% Ln3+ (La–Lu, except Pm) and diverse concentrations of Lu3+ can modify the phase, morphology and size of the prepared products. A possible formation mechanism for the products with diverse morphologies is proposed. In addition, Ln3+-doped ScF3 or NaScF4 nano-/micro-crystals presented characteristic up/down-conversion fluorescence spectra.

Graphical abstract: Tuning the phase, morphology and size of monodisperse ScF3 and NaScF4 crystals through lanthanide doping

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Publication details

The article was received on 24 May 2016, accepted on 29 Jun 2016 and first published on 29 Jun 2016


Article type: Paper
DOI: 10.1039/C6CE01198E
CrystEngComm, 2016,18, 5940-5951

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    Tuning the phase, morphology and size of monodisperse ScF3 and NaScF4 crystals through lanthanide doping

    J. Cao, L. Yuan, S. Hu, J. Tang, X. Zhou and J. Yang, CrystEngComm, 2016, 18, 5940
    DOI: 10.1039/C6CE01198E

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