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Materials letters, 2020-02, Vol.261, p.126973, Article 126973
2020

Details

Autor(en) / Beteiligte
Titel
Fabrication and OSL properties of Eu3+-doped NaCaPO4 glass-ceramics
Ist Teil von
  • Materials letters, 2020-02, Vol.261, p.126973, Article 126973
Ort / Verlag
Amsterdam: Elsevier B.V
Erscheinungsjahr
2020
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
  • •Eu3+-doped GC containing NaCaPO4 crystals were fabricated via melt-quenching route with further heat-treatment.•The NaCaPO4 GC exhibited high sensitivity to ionizing radiation, and a broad linear dose response range (0.02–1000 Gy).•The strongest emission peak was observed at a wavelength of 619 nm, which relates to the 5D0→7F2 transition of the Eu3+.•The CW-OSL intensity decays to 1/e of the peak value after 8 s of stimulation which is enough for real-time measurement. Eu3+-doped glass-ceramics (GC) containing NaCaPO4 crystals were successfully fabricated via traditional melt-quenching route with further heat-treatment. The structure of NaCaPO4 crystals was confirmed by X-ray diffraction technique. Moreover, photoluminescence (PL) and optically stimulated luminescence in continuous wave modality (CW-OSL) properties were investigated for potential applications in radiation measurements. The PL excitation and emission spectra exhibited transitions related to Eu3+ ions corresponding to the strongest excitation and emission wavelengths at 395 and 619 nm, respectively. The CW-OSL intensity reached a maximum when the Eu2O3 concentration was 0.25 mol%. Doping the material with abundant Eu2O3 shows concentration quenching. The NaCaPO4 GC exhibited high sensitivity to ionizing radiation, Low-Z (Zeff ≈ 10.16) and a broad linear dose response range (0.02–1000 Gy).
Sprache
Englisch
Identifikatoren
ISSN: 0167-577X
eISSN: 1873-4979
DOI: 10.1016/j.matlet.2019.126973
Titel-ID: cdi_proquest_journals_2354311039

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