Synthesis and luminescent properties of Ln3+ (Ln3+=Eu3+,Dy3+)-doped Bi2ZnB2O7 phosphors
来源期刊：Rare Metals2012年第1期
论文作者：ZHANG Qiuhonga,b,WANG Jingb,NI Haiyonga,and WANG Linglia a Rare Earth Metallurgy Research Department,Guangzhou Research Institute of Non-Ferrous Metals,Guangzhou ,China b Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry,State Key Laboratory of Optoelectronic Materials and Technologies,School of Chemis-try and Chemical Engineering,Sun Yat-sen University,Guangzhou ,China
文章页码：35 - 38
摘 要：The new phosphors Bi2ZnB2O7:Ln3+ （Ln3+=Eu3+,Dy3+） were synthesized by solid-state reaction technique.The obtained phosphors were investigated by means of X-ray powder diffraction （XRD）,photoluminescence excitation and emission spectra with the aim of enhancing the fundamental knowledge about the luminescent properties of Eu3+ and Dy3+ ions in the Bi2ZnB2O7 host lattice.XRD analysis shows that all these compounds are of a single phase of Bi2ZnB2O7.The excitation and emission spectra of Bi2ZnB2O7:Ln3+ （Ln3+=Eu3+,Dy3+） at room temperature show the typical 4f-4f transitions of Eu3+ and Dy3+,respectively.The hypersensitive transitions of 5D0→7F2 （Eu3+） and 4F9/2→6H13/2 （Dy3+） are relatively higher than those of the insensitive transitions in Bi2ZnB2O7.It is conceivable that the Bi2ZnB2O7 structure provides asymmetry sites for activators （Eu3+,Dy3+）.The optimum concentrations of Eu3+ and Dy3+ ions in Bi2ZnB2O7 phosphors are both x=0.05.
ZHANG Qiuhonga,b,WANG Jingb,NI Haiyonga,and WANG Linglia a Rare Earth Metallurgy Research Department,Guangzhou Research Institute of Non-Ferrous Metals,Guangzhou 510650,China b Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry,State Key Laboratory of Optoelectronic Materials and Technologies,School of Chemis-try and Chemical Engineering,Sun Yat-sen University,Guangzhou 510275,China
摘 要：The new phosphors Bi2ZnB2O7:Ln3+ （Ln3+=Eu3+,Dy3+） were synthesized by solid-state reaction technique.The obtained phosphors were investigated by means of X-ray powder diffraction （XRD）,photoluminescence excitation and emission spectra with the aim of enhancing the fundamental knowledge about the luminescent properties of Eu3+ and Dy3+ ions in the Bi2ZnB2O7 host lattice.XRD analysis shows that all these compounds are of a single phase of Bi2ZnB2O7.The excitation and emission spectra of Bi2ZnB2O7:Ln3+ （Ln3+=Eu3+,Dy3+） at room temperature show the typical 4f-4f transitions of Eu3+ and Dy3+,respectively.The hypersensitive transitions of 5D0→7F2 （Eu3+） and 4F9/2→6H13/2 （Dy3+） are relatively higher than those of the insensitive transitions in Bi2ZnB2O7.It is conceivable that the Bi2ZnB2O7 structure provides asymmetry sites for activators （Eu3+,Dy3+）.The optimum concentrations of Eu3+ and Dy3+ ions in Bi2ZnB2O7 phosphors are both x=0.05.
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