Transparent Ce3+-doped fluorapatite (FAP) ceramics fabricated by spark plasma sintering (SPS)

Transparent Ce3+-doped fluorapatite (FAP) ceramics fabricated by spark plasma sintering (SPS)

Polycrystalline Ce3+-doped fluorapatite (Ce:FAP) transparent ceramics with fine microstructures were fabricated through liquid-phase synthesis for the initial powder and spark plasma sintering (SPS) for full densification. These ceramics were confirmed to have a single-phase crystal structure, and t...

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Veröffentlicht in:Optical materials express 2024-09, Vol.14 (9), p.2114
Hauptverfasser: Yousuf, Abu, Ohno, Tomoya, Xu, Jian, Nakanishi, Takayuki, Morita, Koji, Kim, Byung-Nam, Suzuki, Tohru S, Furuse, Hiroaki
Format: Artikel
Sprache:eng
Schlagworte:
Ceramics
Cerium
Crystal structure
Densification
Emission spectra
Fluorapatite
Grain size
Light emission
Liquid phases
Sintering (powder metallurgy)
Spark plasma sintering
Ultraviolet radiation
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Zusammenfassung:Polycrystalline Ce3+-doped fluorapatite (Ce:FAP) transparent ceramics with fine microstructures were fabricated through liquid-phase synthesis for the initial powder and spark plasma sintering (SPS) for full densification. These ceramics were confirmed to have a single-phase crystal structure, and the average grain sizes were determined to be 139 and 135 nm for the 1 and 2 at.% Ce-doping concentrations, respectively. Their emission spectra revealed that the fabricated ceramics convert UV light to visible light emission due to the 5d→4f electronic transition of Ce3+. These ceramics are expected to be useful in photonic applications.
ISSN:2159-3930
DOI:10.1364/OME.530288