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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 23/2018

22.09.2018

Photoluminescence enhancement of Ca3Sr3(PO4)4:Dy3+ white-emitting phosphors by Li+ and Na+ charge compensation

verfasst von: Wanwan Li, Wentao Zhang, Yu Gan, Wenjie Li, Kehui Qiu

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 23/2018

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Abstract

A series of Ca3Sr3(PO4)4:Dy3+, M+ (M = Li and Na) white-emitting phosphors was prepared via a high-temperature solid-state reaction, where M+ was co-doped in Ca3Sr3(PO4)4:Dy3+ as charge compensators for enhancing its luminescence. Effects of synthesis temperature and charge compensator M+ on the structure and luminescence properties of as-prepared phosphors were studied in detail. The results of X-ray diffraction indicate that the structures of Ca3Sr3(PO4)4:Dy3+, M+ samples were in agreement with the standard Ca2Sr(PO4)2 phase. Under excitation of 352 nm, there are two apparent peaks at 484 nm (blue) and 577 nm (yellow) in the emission spectra of Ca3Sr3(PO4)4:Dy3+, M+ samples, which corresponding to the 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 electron transitions of Dy3+ ions, respectively. Luminescence intensity and lifetime of Ca3Sr3(PO4)4:Dy3+ can be significantly enhanced through adding a charge compensator M+, which suggest that Ca3Sr3(PO4)4:Dy3+, M+ can be used as a single-phase white-emitting phosphor in the applications of white light-emitting diodes.
Vorheriger Artikel Yellow and warm white light emitting Zn doped Y2O3 for near UV excitable phosphor converted WLED
Nächster Artikel The synergetic electromagnetic properties and enhanced microwave absorption of BiFeO3/BaFe7(MnTi)2.5O19 composite

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Metadaten
Titel
Photoluminescence enhancement of Ca3Sr3(PO4)4:Dy3+ white-emitting phosphors by Li+ and Na+ charge compensation
verfasst von
Wanwan Li
Wentao Zhang
Yu Gan
Wenjie Li
Kehui Qiu
Publikationsdatum
22.09.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 23/2018
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-018-0098-6

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