Potential tunable white-emitting phosphor lt;LiSr4(BO3)3:Ce3+, Eu2+ for ultraviolet light-emitting diodes
MetadataShow full item record
A novel Ce3/Eu2 co-activated LiSr4(BO 3)3 phosphor has been synthesized by traditional solid-state reaction. The samples could display varied color emission from blue towards white and ultimately to yellow under the excitation of ultraviolet (UV) light with the appropriate adjustment of the relative proportion of Ce 3/Eu2. The resonance-type energy transfer mechanism from Ce3 to Eu2 in LiSr4(BO3) 3:Ce3, Eu2 phosphors is dominant by electric dipoledipole interaction, and the critical distance is calculated to be about 29.14 Å by the spectra overlap method. White light was observed from LiSr4(BO3)3:mCe3, nEu2 phosphors with chromaticity coordinates (0.34, 0.30) upon 350 nm excitation. The LiSr4(BO3)3:Ce3, Eu2 phosphor has potential applications as an UV radiation-converting phosphor for white light-emitting diodes. © 2011 Elsevier B.V. All rights reserved.
Showing items related by title, author, creator and subject.
Guo, M.; Huang, L.; Zhao, S.; Deng, D.; Wang, H.; Hua, Y.; Jia, Guohua; Xu, S. (2013)A series of phosphors with nominal compositions of Sr1.7M 0.3SiO4-xFx:0.01Eu2+, 0.08Mn 2+ (x=0, 0.01, 0.05, 0.1, 0.2) were synthesized through solid-state reaction technique. Their luminescent properties were studied. ...
Huang, L.; Guo, M.; Zhao, S.; Deng, D.; Wang, H.; Hua, Y.; Jia, Guohua; Xu, S. (2013)Ce3+, Tb3+ singly-doped and co-doped Ca 2LiSiO4F phosphors have been synthesized through conventional solid-state reaction. Their luminescence properties are studied. Under UV excitation, Ce3+ singly-doped Ca2LiSiO 4F ...
Ca4(PO4)2O: Eu2+ red-emitting phosphor for solid-state lighting: Structure, luminescent properties and white light emitting diode applicationDeng, D.; Yu, H.; Li, Y.; Hua, Y.; Jia, Guohua; Zhao, S.; Wang, H.; Huang, L.; Li, Y.; Li, C.; Xu, S. (2013)A red-emitting phosphor, Eu2+-activated Ca4(PO 4)2O phosphor was synthesized by conventional solid-state reaction. X-ray powder diffraction confirmed the phase formation. The band gap of Ca4(PO4)2O was estimated to be ...