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Ca9La(PO4)5(SiO4)Cl2:Dy3+: A white-emitting apatite-type phosphor pumped for n-UV w-LEDs.
- Source :
-
Journal of Luminescence . Jan2017, Vol. 181, p407-410. 4p. - Publication Year :
- 2017
-
Abstract
- The Ca 9 La(PO 4 ) 5 (SiO 4 )Cl 2 :Dy 3+ (CLPSCl:Dy 3+ ) 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:Dy 3+ phosphor could efficiently assimilate the n -UV light and emit blue (~486 nm) and yellow light (~578 nm), originating from the f-f transitions of Dy 3+ . The critical Dy 3+ quenching concentration (QC) was determined to be about 12 mol%. The concentration quenching mechanism was also determined to be dipole–dipole interaction. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222313
- Volume :
- 181
- Database :
- Academic Search Index
- Journal :
- Journal of Luminescence
- Publication Type :
- Academic Journal
- Accession number :
- 119370386
- Full Text :
- https://doi.org/10.1016/j.jlumin.2016.09.060