Enhanced luminescence properties and energy transfer in Ce3+ and Tb3+ co-doped NaCaBO3 phosphor. Issue 4 (May 2015)

• Record Type: Journal Article
• Authors: Qin, Xingzhen; Zhang, Xinguo; He, Pei; Pang, Qi; Zhou, Liya; Gong, Menglian
• Is Part Of: Ceramics international. Volume 41:Issue 4(2015)
• Page Start: 5554
• Page End: 5560
• Publication Date: 2015-05
• Subjects: NaCaBO3: Ce3+, Tb3+ -- Energy transfer -- Luminescence -- Color-tunable; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2014.12.132
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: A series of color-tunable NaCaBO3 : Ce 3+, Tb 3+ phosphors have been synthesized on the basis of efficient Ce 3+ →Tb 3+ energy transfer. The photoluminescence emission and excitation spectra, the lifetime, and the effect of Tb 3+ concentration are investigated in detail. The enhanced photoluminescence of Tb 3+ with sharp emission lines could be obtained by the broad excitation band from the allowed 4 f –5 d absorption of Ce 3+ ions. The intensity ratio of blue emission from Ce 3+ and green emission from Tb 3+ can be tuned by adjusting their concentrations. The energy transfer from Ce 3+ to Tb 3+ in NaCaBO3 was found to be an electric dipole–quadrupole interaction.