Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5399629 | Journal of Luminescence | 2015 | 4 Pages |
Abstract
The luminescent properties of the samples depend slightly on the concentration of the doped europium (III) ions, in the range of 570-860 nm. The intensity ratio between the charge transfer band and the 4f-4f transitions is low. The most intensive is the red 5D0â7F2 emission (604-633 nm), with the maximum at 612 nm. The measured lifetimes are equal to about 1.88 ms and do not change up to the 3% concentration of the Eu3+ ions. Quantum yield (QY) was calculated from the emission spectra and measured. The most intensive luminescence (measured QY=27% at λexc=393 nm) possesses a sample with 3% concentration of the doped Eu3+ ions.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
K. LemaÅski, M. StefaÅski, D. StefaÅska, P.J. DereÅ,