X-ray excited luminescence of SrAl2O4:Eu, Dy at low temperatures. (April 2018)

• Record Type: Journal Article
• Authors: Liepina, V.; Millers, D.; Smits, K.; Zolotarjovs, A.; Bite, I.
• Is Part Of: Journal of physics and chemistry of solids. Volume 115(2018)
• Page Start: 381
• Page End: 385
• Publication Date: 2018-04
• Subjects: Solids -- Periodicals; Solides -- Périodiques; Solids; Periodicals; 530.41
• DOI: 10.1016/j.jpcs.2017.12.040
• Languages: English
• ISSNs: 0022-3697

Abstract

Highlights: An addition to the mechanism of long lasting phosphorescence in SrAl2 O4 : Eu, Dy is proposed. Eu 2+ and Dy 3+ serve as hole traps and the Eu 3+ as well as Dy 4+ are accumulated. At 10 K excited Eu 2+ and Dy 3+ centers are created via electron tunneling from host trap to Eu 3+ and Dy 4+ ions.