Effect of Al/Sr ratio on the luminescence properties of SrAl2O4:Eu2+, Dy3+ phosphors

Kaya S., Karacaoglu E., KARASU B.

CERAMICS INTERNATIONAL, vol.38, no.5, pp.3701-3706, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 5
  • Publication Date: 2012
  • Doi Number: 10.1016/j.ceramint.2012.01.013
  • Journal Name: CERAMICS INTERNATIONAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3701-3706
  • Keywords: Long persistence phosphorescence, Strontium aluminates, Al/Sr ratio, Crystal, LONG, SR4AL14O25-EU2+
  • Anadolu University Affiliated: Yes

Abstract

Recent studies have brought out many phosphors like Eu2+, Dy3+-doped alkaline earth aluminates. The trivalent Dy3+ ions as co-dopants greatly enhance the duration and intensity of persistent luminescence. These phosphors show excellent properties, such as high quantum efficiency, long persistence of phosphorescence, good stability and suitable color emission.