| 白光LED用荧光粉SrAl_2Si_2O_8∶Eu~(2+)合成条件优化研究 |
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| 引用本文： | 王飞,田一光,张乔.白光LED用荧光粉SrAl_2Si_2O_8∶Eu~(2+)合成条件优化研究[J].人工晶体学报,2017(10):1992-1998. |
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| 作者姓名： | 王飞 田一光 张乔 |
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| 作者单位： | 1. 安徽三联学院实验中心,合肥 230601;安徽大学化学化工学院,合肥230601;2. 温州大学化学与材料工程学院,温州,325035 |
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| 基金项目： | 国家自然科学基金(20771086)，安徽省高校自然科学研究重点项目(KJ2016A893)，安徽三联学院科研项目(2015Z001;2013Z001)，安徽三联学院质量工程项目(15zlgc008)，国家级大学生创新创业项目(201710959055) |
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| 摘 要： | Sr_(0.975)Al_2Si_2O_8∶Eu_(0.025)~(2+)系列荧光粉利用高温固相法合成,系统研究了预烧温度、预烧时间、烧成温度和助溶剂硼酸的量对荧光体晶体结构和发光性能的影响;研究结果表明,各试样均为单斜晶系SrAl_2Si_2O_8,荧光体的X射线衍射强度、荧光体的晶粒尺寸及荧光体的发射强度,均随着预烧温度、预烧时间、烧成温度和助溶剂硼酸量的增加,呈先增加后减小的变化趋势。当预烧温度为1000℃,预烧时间为150 min,烧成温度为1250℃,助溶剂硼酸的量为6wt%,制得的荧光体Sr_(0.975)Al_2Si_2O_8∶Eu_(0.025)~(2+)的发光强度最强,优化了合成条件。
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| 关 键 词： | LED SrAl2Si2O8:Eu2%2B 合成条件 |
Study on Optimization of Synthesis Conditions of Phosphor SrAl2Si2O8:Eu2+for White LED |
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| WANG Fei,TIAN Yi-guang,ZHANG Qiao.Study on Optimization of Synthesis Conditions of Phosphor SrAl2Si2O8:Eu2+for White LED[J].Journal of Synthetic Crystals,2017(10):1992-1998. |
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| Authors: | WANG Fei TIAN Yi-guang ZHANG Qiao |
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| Abstract: | A series of luminescence phosphors Sr 0.975 Al2 Si2 O8 :Eu2+0.025 were prepared by solid-state reaction, the effect of the fisrt firing temperature ( T1 ), the fisrt firing time ( t), the second firing temperature(T2) and the concentration of flux H3BO3(W) on the spectrum characteristics and structure of the sample was investigated .The results show that the samples are monoclinic SrAl 2 Si2 O8 , emission intensity, grain size and intensity of X-ray diffraction of the phosphor increase with T1 , t, T2 and W, show the trend of increasing first and then decreasing .When the T1 =1000 ℃, t=150 min, T2 =1250℃, W=6wt%, the synthesis of phosphor Sr 0.975 Al2 Si2 O8:Eu2+0.025 luminescence intensity is strongest , the synthesis conditions are optimized . |
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| Keywords: | LED SrAl2 Si2 O8:Eu2+ synthesis condition |
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