Effect of light conversion agent on luminous properties of a new down-converting material SrAl2O4:Eu2+,Dy3+/light conversion agent
来源期刊：JOURNAL OF RARE EARTHS2016年第5期
论文作者：朱亚楠 逄增媛 王建 葛明桥 孙思瑾 胡泽华 翟佳鹤 高佳欣 姜伏生
文章页码：483 - 488
摘 要：A new luminous material SrAl2O4:Eu2+,Dy3+/light conversion agent that can emit red light in the darkness after being excited was fabricated by combining light conversion agent on to SrAl2O4:Eu2+,Dy3+ particles through YsiX3.The morphology of the luminous materials was analyzed by scan electron microscopy（SEM）.The emission behavior was evaluated by fluorescence spectrophotometric analysis and the results demonstrated that the emission spectra of samples had a redshift compared to SrAl2O4:Eu2+,Dy3+ and the emission intensity rose dramatically at first and then decreased when the ratio of light conversion agent doping was over 1.4 wt.%.And the emission color of SrAl2O4:Eu2+,Dy3+/light conversion agent was tuned from green(SrAl2O4:Eu2+,Dy3+)to orange-red.Furthermore,the afterglow property was also investigated,and the results indicated that the afterglow brightness reached 6.5 cd/m2,and as the light conversion agent concentration increased the brightness intensity decreased.
朱亚楠，逄增媛，王建，葛明桥，孙思瑾，胡泽华，翟佳鹤，高佳欣，姜伏生
Key Laboratory of Eco-Textile,Ministry of Education,College of Textiles and Clothing,Jiangnan University
摘 要：A new luminous material SrAl2O4:Eu2+,Dy3+/light conversion agent that can emit red light in the darkness after being excited was fabricated by combining light conversion agent on to SrAl2O4:Eu2+,Dy3+ particles through YsiX3.The morphology of the luminous materials was analyzed by scan electron microscopy（SEM）.The emission behavior was evaluated by fluorescence spectrophotometric analysis and the results demonstrated that the emission spectra of samples had a redshift compared to SrAl2O4:Eu2+,Dy3+ and the emission intensity rose dramatically at first and then decreased when the ratio of light conversion agent doping was over 1.4 wt.%.And the emission color of SrAl2O4:Eu2+,Dy3+/light conversion agent was tuned from green(SrAl2O4:Eu2+,Dy3+)to orange-red.Furthermore,the afterglow property was also investigated,and the results indicated that the afterglow brightness reached 6.5 cd/m2,and as the light conversion agent concentration increased the brightness intensity decreased.
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