| 两种新型Ce~(3+)/Sm~(3+)和Eu~(3+)激活的2CaO-Al_2O_3体系荧光体的制备及光致发光特性 |
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| 引用本文： | 董红军,杨福利. 两种新型Ce~(3+)/Sm~(3+)和Eu~(3+)激活的2CaO-Al_2O_3体系荧光体的制备及光致发光特性[J]. 白城师范学院学报, 2010, 0(3) |
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| 作者姓名： | 董红军 杨福利 |
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| 作者单位： | 白城师范学院化学系;吉林烟草工业有限公司品控部; |
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| 基金项目： | 白城师范学院青年基金项目:新型稀土激活的复合硼酸盐光致发光材料的合成及发光性能研究 |
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| 摘 要： | 采用自蔓延燃烧合成(SPCS)技术成功制备了两种新型Ce3+/Sm3+和Eu3+激活的2CaO-Al2O3体系荧光体,发光性质研究表明2CaO-Al2O3:Eu3+在598nm、618nm、650nm、699nm、718nm及749nm六组发射峰分别归属于Eu3+的5D0→7FJ(J=1,2,3,4,5,6)跃迁,其中来自于5D0→7F2的电偶极跃迁发射最强,产品在紫外光激发下发红光,体系中存在5D1,2和5D0之间的多声子驰豫作用;2CaO-Al2O3:Ce3+/Sm3+在576nm与622nm两组发射峰分别来自于4G5/2→6HJ(J=5/2,7/2)跃迁,产品在近紫外光激发下发红光.Eu3+和Sm3+离子在2CaO-Al2O3中主要占非反演中心格位.SEM显示样品表面光滑,结晶较好.
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| 关 键 词： | 自蔓延燃烧合成 2CaO-Al2O3 光致发光特性 |
Preparation and Photoluminescence Characteristic of Two New 2CaO-Al_2O_3 Systems Activated by Ce~(3+)/Sm~(3+) and Eu~(3+) |
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| DONG Hong-jun,YANG Fu-li. Preparation and Photoluminescence Characteristic of Two New 2CaO-Al_2O_3 Systems Activated by Ce~(3+)/Sm~(3+) and Eu~(3+)[J]. Journal of Baicheng Normal College, 2010, 0(3) |
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| Authors: | DONG Hong-jun YANG Fu-li |
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| Affiliation: | DONG Hong-jun,YANG Fu-li(Department of Chemistry,Baicheng Normal College,Baicheng 137000,China,Jilin Tobacco Industry Co.,Ltd.Quality Control Division,Yanji 133001,China) |
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| Abstract: | Two new phosphors 2CaO-Al2O3 systems activated by Ce3+/Sm3+ and Eu3+ are successfully prepared by Self-Propagating Combustion Synthesis(SPCS) technology.The photoluminescence properties show that the emission peaks of 2CaO-Al2O3: Eu3+ phosphors belong to 5D0→7FJ(J = 1,2,3,4,5,6) transition of Eu3+ ions at 598nm,618nm,650nm,699nm,718nm,749nm,respectively,in which electric dipole transition 5D0→7F2 is most strongest.The 2CaO-Al2O3: Eu3+ phosphors emit red light under UV radiation,in which phonons relaxation p... |
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| Keywords: | Self-Propagating Combustion Synthesis 2CaO-Al2O3 photoluminescence characteristic |
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