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Journal of Materials Science
Erschienen in: Journal of Materials Science 10/2017

06.02.2017 | Original Paper

Morphology-controllable synthesis, energy transfer and luminescence properties of Ce3+/Tb3+/Eu3+-doped CaF2 microcrystals

verfasst von: Bei Zhao, Dingyi Shen, Qinyue Tan, Jianfeng Tang, Xianju Zhou, Shanshan Hu, Jun Yang

Erschienen in: Journal of Materials Science | Ausgabe 10/2017

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Abstract

CaF2:Ln3+ (Ln = Ce, Tb, Eu) phosphors with highly uniform shapes have been successfully synthesized by a simple hydrothermal method directly. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL) and lifetime. The results indicated that the pH values, organic additive and reaction time have a significant effect on the morphology and dimensions of CaF2 microcrystals and the possible formation mechanism was also proposed. Furthermore, the energy transfer from Ce3+ to Tb3+ and from Tb3+ to Eu3+ and from Ce3+ to Tb3+ to Eu3+ was observed and the corresponding mechanisms were discussed in detail. The CaF2:Ln3+ phosphors may have potential optical applications in near-UV and violet LEDs.
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Metadaten
Titel
Morphology-controllable synthesis, energy transfer and luminescence properties of Ce3+/Tb3+/Eu3+-doped CaF2 microcrystals
verfasst von
Bei Zhao
Dingyi Shen
Qinyue Tan
Jianfeng Tang
Xianju Zhou
Shanshan Hu
Jun Yang
Publikationsdatum
06.02.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 10/2017
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-0822-2

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