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- Title
Improved luminescent properties of Eu activated phosphor α-SrPO by charge compensation.
- Authors
Fan, Guo-Dong; Lin, Chen; Fan, Di; Liu, Bao-Jian; Yang, Wei
- Abstract
A series of phosphors SrPO:xEu (x = 0.02-0.16), SrPO:xEu, xM (x = 0.1, M = Li, Na, K) and SrPO:xEu xNa (x = 0.02-0.16) were synthesized through high-temperature solid-state reaction. It is found that Na is the best compensator among Li, Na, K by XRD and emission analysis. The luminescent properties of SrPO:Eu, Na were dramatically improved in the aspect of the emission intensities and chromaticity, comparing with SrPO:Eu (without charge compensation). And the mechanism of which was discussed in detail. Under the excitation of 393 nm, charge compensated phosphors SrPO:Eu, Na show intense red emission at 610 nm, which is attributed to the D → F transition of Eu ions. The luminescence decay, concentration quenching and temperature quenching effect were also investigated. The results indicated that SrPO:Eu, Na may be a candidate as a red component in lighting field.
- Subjects
EUROPIUM spectra; PHOSPHOR crystallography; STRONTIUM compounds; X-ray diffraction; METAL quenching; LUMINESCENCE; CHROMATICITY
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 1, p892
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-015-3831-4