Preparation and photoluminescence properties of Dy3+-doped Ba3Lu（PO4）3 phosphors
来源期刊：JOURNAL OF RARE EARTHS2015年第12期
论文作者：杨在发 孙宇梅 徐齐光 孙家跃
文章页码：1251 - 1255
摘 要：Ba3Lu（PO4）3:Dy3+ phosphors were successfully synthesized by conventional solid state reaction and its photoluminescence properties were investigated by X-ray diffraction（XRD）,photoluminescence spectra and diffuse reflectance spectra,respectively.Results showed that the phosphor could be excited by the ultraviolet visible light in the region from 320 to 460 nm,and it showed two dominant emission bands peaking at 484 nm（blue light） and 575 nm（yellow light） which originated from the transitions of4F9/2→6H15/2 and 4F9/2→6H13/2 of Dy3+,respectively.According to Dexter’s theory,the concentration quenching mechanism occurred via the electric dipole-dipole interaction.The lifetime values of Dy3+ ions at different concentrations（x=0.01,0.03,0.05,0.08 and0.10） were determined to be about 0.8556,0.7595,0.6864,0.6059 and 0.5456 ms.
杨在发，孙宇梅，徐齐光，孙家跃
School of Science Beijing Technology and Business University
摘 要：Ba3Lu（PO4）3:Dy3+ phosphors were successfully synthesized by conventional solid state reaction and its photoluminescence properties were investigated by X-ray diffraction（XRD）,photoluminescence spectra and diffuse reflectance spectra,respectively.Results showed that the phosphor could be excited by the ultraviolet visible light in the region from 320 to 460 nm,and it showed two dominant emission bands peaking at 484 nm（blue light） and 575 nm（yellow light） which originated from the transitions of4F9/2→6H15/2 and 4F9/2→6H13/2 of Dy3+,respectively.According to Dexter’s theory,the concentration quenching mechanism occurred via the electric dipole-dipole interaction.The lifetime values of Dy3+ ions at different concentrations（x=0.01,0.03,0.05,0.08 and0.10） were determined to be about 0.8556,0.7595,0.6864,0.6059 and 0.5456 ms.
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