Effect of mixing process on the luminescent properties of SrAl2O4:Eu2+,Dy3+ long afterglow phosphors
来源期刊：Journal of Rare Earths2010年第1期
论文作者：吕霄 孙猛 张俊英 王天民
文章页码：150 - 152
摘 要：A new mixing method was developed for solid-state reaction synthesis of SrAl2O4:Eu2+,Dy3+ long afterglow phosphors.The morphology and crystal structure of the phosphors were analyzed with scanning electron microscope（SEM） and X-ray diffractometer（XRD）.The excitation and emission spectra of the long afterglow phosphors were measured,and the main emission band was around 514 nm.The decay time of the product was measured and compared with the phosphors prepared using dry-mixing method and wet-mixing method.It was found that the aggregates and impurities in the phosphors prepared using dry-mixing method and wet-mixing method impaired the luminescent properties.The phosphors synthesized using the new mixing method had high initial brightness and slow decay speed.This method is considered of great potential applications in industry.
吕霄1，孙猛2，张俊英1，王天民1
1. School of Physics and Nuclear Energy Engineering,Beihang University2. Department of Technology and Physics,Zhengzhou University of Light Industry
摘 要：A new mixing method was developed for solid-state reaction synthesis of SrAl2O4:Eu2+,Dy3+ long afterglow phosphors.The morphology and crystal structure of the phosphors were analyzed with scanning electron microscope（SEM） and X-ray diffractometer（XRD）.The excitation and emission spectra of the long afterglow phosphors were measured,and the main emission band was around 514 nm.The decay time of the product was measured and compared with the phosphors prepared using dry-mixing method and wet-mixing method.It was found that the aggregates and impurities in the phosphors prepared using dry-mixing method and wet-mixing method impaired the luminescent properties.The phosphors synthesized using the new mixing method had high initial brightness and slow decay speed.This method is considered of great potential applications in industry.
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