Journal of Alloys and Compounds2022，Vol.90810.DOI:10.1016/j.jallcom.2022.164521

Site occupancy, luminescence and dielectric properties of β-Ca3(PO4)2-type Ca8ZnLn(PO4)7 host materials

Dikhtyar Y.Y. Morozov V.A. Deyneko D.V. Baryshnikova O.V. Nikiforov I.V. Lazoryak B.I. Spassky D.A. Belik A.A.
Journal of Alloys and Compounds2022，Vol.90810.DOI:10.1016/j.jallcom.2022.164521
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  • NSTL
  • Elsevier

Site occupancy, luminescence and dielectric properties of β-Ca3(PO4)2-type Ca8ZnLn(PO4)7 host materials

Dikhtyar Y.Y. 1Morozov V.A. 1Deyneko D.V. 1Baryshnikova O.V. 1Nikiforov I.V. 1Lazoryak B.I. 1Spassky D.A. 2Belik A.A.3
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作者信息

  • 1. Lomonosov Moscow State University Chemistry Department
  • 2. Lomonosov Moscow State University Skobeltsyn Institute of Nuclear Physics
  • 3. International Center for Materials Nanoarchitectonics (WPI-MANA) National Institute for Materials Science (NIMS)
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Abstract

? 2022 Elsevier B.V.Phosphates of Ca8ZnLn(PO4)7 (Ln3+ = La – Nd, Sm – Lu) with β-Ca3(PO4)2-type structure were prepared by high-temperature solid-state technique on air. All compounds of Ca8ZnLn(PO4)7 are centrosymmetric and have R3ˉc space group, which has been proved by several methods such as second-harmonic generation, dielectric spectroscopy, and Rietveld analysis. The influence of Ln3+ on the structure, luminescent properties and temperature of phase transitions, which corresponds with “tetrad” effect, has been investigated. The bandgap width and location of 4f Ln3+ and Ln2+ levels relatively to the energy bands were determined using the data of luminescent spectroscopy.

Key words

4f levels/Antiferroelectric properties/Bandgap of β-Ca3(PO4)2/Crystal structure/Dielectric properties/Luminescence properties/Phosphate/Synchrotron radiation

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出版年

2022
Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
被引量1
参考文献量45
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