| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7840422 | Journal of Luminescence | 2018 | 5 Pages |
Abstract
In this paper, Ce3+-activated iso-structural solid solutions La5.99Ce0.01M4(SiO4)6F2 (M = Ca, Sr and Ba) compounds were prepared for the first time. The structure and luminescence properties of the samples were investigated to explore the difference of cation substitution. The phase analysis indicated that all XRD peaks of the samples were indexed by a hexagonal cell with the space group of P63/m, and the phosphors showed strong blue light emission with broad bands. With the isomorphous substitution of Ba â Sr â Ca, the average bond length between Ce3+ and anions is decreased and the crystal field around Ce3+ is strengthened, resulting in the red-shift (from 410Â nm to 423Â nm) of the emission wavelength for La5.99Ce0.01M4(SiO4)6F2 (M = Ca, Sr, Ba).
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Qingfeng Guo, Libing Liao, Stefan Lis, Haikun Liu, Lefu Mei,