| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5398060 | Journal of Luminescence | 2017 | 4 Pages |
Abstract
The Ca9La(PO4)5(SiO4)Cl2:Dy3+ (CLPSCl:Dy3+) powder phosphor with apatite structure has been successfully synthesized via high-temperature solid state method. Single phase in such phosphor was verified through X-ray diffraction (XRD) technique. The Dy ions concentration dependent luminescence properties including emission, excitation and lifetimes of Dy ions were characterized using photoluminescence (PL) spectroscopy. The results showed that CLPSCl:Dy3+ phosphor could efficiently assimilate the n-UV light and emit blue (~486Â nm) and yellow light (~578Â nm), originating from the f-f transitions of Dy3+. The critical Dy3+ quenching concentration (QC) was determined to be about 12Â mol%. The concentration quenching mechanism was also determined to be dipole-dipole interaction.
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Authors
Haikun Liu, Libing Liao, Qingfeng Guo, Dan Yang, Lefu Mei,