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Issue 16, 2017
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Preparation and temperature-dependent photoluminescence properties of ScF3:Eu3+ submicroparticles

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Abstract

In this study, negative thermal expansion (NTE) ScF3 submicroparticles were prepared and selected as host material. Various Eu3+ concentrations (0.05–50%) in the doped ScF3 particles were obtained and their temperature-dependent photoluminescence (PL) properties were studied. The phase confirmation and morphology of the as-prepared ScF3 particles were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The XRD results reveal that when the doping concentration reaches 3%, the EuF3 phase begins to form. The size of the ScF3 cubic particles ranges from 300 nm to 800 nm. The ScF3:Eu3+(1%) submicroparticles were prepared and their PL properties were evaluated. The temperature-dependent luminescence results reveal that the luminescence intensity increases with the decrease in temperature in the range from 80 K to 450 K. Moreover, the decay time increases with a decrease in temperature. The crystal structure, electronic properties, dielectric functions, and absorption spectra have been systematically investigated for the Eu3+-doped ScF3. First principles calculations were used to support and explain our experimental observations.

Graphical abstract: Preparation and temperature-dependent photoluminescence properties of ScF3:Eu3+ submicroparticles

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Publication details

The article was received on 14 Mar 2017, accepted on 16 Jun 2017 and first published on 16 Jun 2017


Article type: Paper
DOI: 10.1039/C7NJ00848A
Citation: New J. Chem., 2017,41, 7915-7923
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    Preparation and temperature-dependent photoluminescence properties of ScF3:Eu3+ submicroparticles

    H. Xu, R. Liu, B. Xu, X. Li, C. Ouyang and S. Zhong, New J. Chem., 2017, 41, 7915
    DOI: 10.1039/C7NJ00848A

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