Site-sensitive energy transfer from Ce3+ to Tb3+/Mn2+ based on an efficient phosphor Li4SrCa(SiO4)2:Ce3+. Issue 15 (15th October 2018)

• Record Type: Journal Article
• Authors: Liao, Shuzhen; Zhang, Weilu; Zhang, Jilin
• Is Part Of: Ceramics international. Volume 44:Issue 15(2018)
• Page Start: 18413
• Page End: 18419
• Publication Date: 2018-10-15
• Subjects: Phosphor -- Energy transfer -- Luminescence -- Ce3+ -- Eu2+; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.07.058
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Ce 3+, Tb 3+ /Mn 2+ co-doped Li4 SrCa(SiO4 )2 (LSCSO) phosphors were synthesized by a high-temperature solid-state reaction based on a highly efficient LSCSO:0.03Ce 3+ with UV and blue emissions. Energy transfer (ET) in these phosphors was studied. Analyses indicate that ET efficiency from UV Ce 3+ to Tb 3+ and Mn 2+ are larger than that from Ce 3+ with blue emission. Different situations in spectral overlap and diverse interactions lead to the different ET efficiency. Emission color of LSCSO:Ce 3+, Tb 3+, Mn 2+ phosphor can be tuned in green-orange-white region by adjusting the concentrations of activators. The present work may provide an example to explore suitable Ce 3+ or Eu 2+ doped phosphor for single-phase white phosphor on the basis of efficient energy transfer.