| Ce、Gd、Ce/Tb、Gd/Tb单双掺杂ZCB基质光致发光性质 |
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| 引用本文： | 袁蕾,杨莉,王清珊.Ce、Gd、Ce/Tb、Gd/Tb单双掺杂ZCB基质光致发光性质[J].延边大学理工学报,2010,36(2):158-160. |
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| 作者姓名： | 袁蕾 杨莉 王清珊 |
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| 作者单位： | 延边大学理学院,化学系,吉林,延吉,133002 |
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| 摘 要： | 采用高温固相法在弱还原气氛下,分别合成了单掺Ce3+、Gd3+和双掺Ce3+/Tb3+、Gd3+/Tb3+的ZnO-CdO-B2O3(ZCB)基质系列荧光体.光谱分析表明:Ce3+的5d→4f(2F7/2,2F5/2)和Gd3+的8P7/2→8S7/2跃迁的强发射分别对应于427 nm和574 nm,而Ce3+/Tb3+和Gd3+/Tb3+的强发射分别对应于546 nm和548 nm.双掺Ce3+/Tb3+、Gd3+/Tb3+的荧光体比单掺Tb3+的发射强度显著增强,这表明存在Ce3+→Tb3+、Gd3+→Tb3+的能量传递,且Ce3+和Gd3+都是Tb3+的优异敏化剂.
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| 关 键 词： | Ce Gd Ce/Tb Gd/Tb 光致发光 ZCB |
Photoluminescence Properties of Single-doped Ce, Gd and Co-doped Ce/Tb, Gd/Tb with the Host ZCB |
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| YUAN Lei,YANG Li,WANG Qing-shan.Photoluminescence Properties of Single-doped Ce, Gd and Co-doped Ce/Tb, Gd/Tb with the Host ZCB[J].Journal of Yanbian University (Natural Science),2010,36(2):158-160. |
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| Authors: | YUAN Lei YANG Li WANG Qing-shan |
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| Affiliation: | (Department of Chemisrty,College of Sciences,Yanbian University,Yanji 133002,China) |
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| Abstract: | A series of luminescence materials with the host ZnO-CdO-B2O3（ZCB） single-doped Ce3＋,Gd3＋ and co-doped Ce3＋/ Tb3＋,Gd3＋/Tb3＋were synthesized by solid-state reaction at a high temperature under the reducing atmosphere.The results from spectrum show that the strong emissions of the 5d → 4f（2F7/2,2F5/2） level transition of Ce3＋and the 8P7/2 → 8S7/2 level transition of Gd3＋ are located at 427 nm and 574 nm,while Ce3＋/Tb3＋ and Gd3＋/Tb3＋ are located at 546 nm and 548 nm,respectively.The emission intensity of fluorescence single-doped Ce3＋ is stronger than that of the co-doped Ce3＋/ Tb3＋ and Gd3＋/Tb3＋,indicating the energy transfer of Ce3＋→Tb3＋,Gd3＋→Tb3＋,Ce3＋ and Gd3＋ are the high efficiency sensitizer of Tb3＋. |
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| Keywords: | Ce Gd Ce/Tb Gd/Tb ZCB |
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