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Preparation and Temperature-Dependent Photoluminescence Properties of ScF3: Eu3+ Submicroparticles

Abstract

In this paper, negative thermal expansion (NTE) ScF3 submicroparticles were prepared and selected as the host material. Various Eu3+ concentration (0.05%-50%) 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). 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. ScF3: Eu3+ (1%) submicroparticles were prepared and their PL properties were evaluated. Temperature-dependent luminescence results reveal that the luminescence intensity increases with the decrease in temperature in the range of 80 K to 450 K. Also, the decay time increases with the 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 are used to support and explain the experimental observations.

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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, Accepted Manuscript
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    Preparation and Temperature-Dependent Photoluminescence Properties of ScF3: Eu3+ Submicroparticles

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

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