Journal
JOURNAL OF LUMINESCENCE
Volume 154, Issue -, Pages 445-451Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2014.05.033
Keywords
Ytterbium; Calcium sulfide; Strontium sulfide; Luminescence; Divalent; Trivalent
Categories
Ask authors/readers for more resources
CaS and SrS, in particular when doped with divalent europium and/or trivalent cerium, have been extensively studied as phosphor materials. In contrast, surprisingly little is known on the behavior of divalent Yb in both hosts. Therefore we report on the luminescence of divalent ytterbium in calcium sulfide and strontium sulfide. In CaS, an emission peak at 760 nm is found, while in SrS ytterbium emission peaks at a strongly red-shifted 950 nm are found. It is motivated that the former is typical for the common 5d-4f luminescence, while the latter is typical for anomalous divalent ytterbium luminescence. Depending on the excitation wavelength, trivalent ytterbium luminescence can also be observed in both hosts. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available