| 掺杂浓度和烧结温度对CaWO4:Eu3+发光性能的影响 |
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| 引用本文： | 高杨,吕强,汪洋,刘占波.掺杂浓度和烧结温度对CaWO4:Eu3+发光性能的影响[J].物理学报,2012,61(7):77802-077802. |
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| 作者姓名： | 高杨 吕强 汪洋 刘占波 |
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| 作者单位： | 1. 牡丹江师范学院物理与电子工程学院, 牡丹江 157012;
2. 牡丹江医学院, 牡丹江 157011;
3. 黑龙江省肿瘤疾病防治重点实验室, 牡丹江医学院, 牡丹江 157011 |
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| 基金项目： | 黑龙江省自然科学基金(批准号: F200940)和黑龙江省教育厅科学技术研究项目(批准号: 11551521)资助的课题. |
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| 摘 要： | 采用微乳液法合成掺杂浓度不同和烧结温度不同的CaWO4:Eu3+系列荧光体, 这些荧光体都具有Eu3+离子的特征荧光发射. 在不同温度烧结后, 高浓度掺杂的样品(Eu3+掺杂30或50 mol%)可获得最大的发光强度, 低浓度掺杂的样品(掺杂0.5—2 mol%)在800 ℃烧结时也可获得优异的发光强度. 实验结果表明, Eu3+离子高浓度掺杂的CaWO4:Eu3+在紫外光激发下可成为高效发光的荧光粉.
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| 关 键 词： | CaWO4:Eu3+ Judd-Ofelt理论 掺杂浓度 光致发光 |
| 收稿时间： | 2011-11-03 |
Effects of doping concentration and sintering temperature on luminescence of CaWO4:Eu3+ phosphor |
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| Gao Yang,Lu|¨ Qiang,Wang Yang,Liu Zhan-Bo.Effects of doping concentration and sintering temperature on luminescence of CaWO4:Eu3+ phosphor[J].Acta Physica Sinica,2012,61(7):77802-077802. |
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| Authors: | Gao Yang Lu|¨ Qiang Wang Yang Liu Zhan-Bo |
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| Institution: | 1. College of Physics and Electronic Engineering, Mudanjiang Normal University, Mudanjiang 157012, China;
2. Mudanjiang Medical University, Mudanjiang 157011, China;
3. Heilongjiang Key Laboratory of Cancer Prevention and Treatment, Mudanjiang Medical University, Mudanjiang 157011, China |
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| Abstract: | The CaWO4:Eu3+ phosphors with different doping concentrations and different sintered temperatures are synthesized using the microemulsion reaction method.After sintered at different temperatures,the samples with doping concentration of 30 or 50 mol% can obtain the brightest characteristic emissions from Eu3+ ions.At 800℃,moreover,the samples with doping concentrations of 0.5—2 mol%can emit the strongest light.It is therefore concluded that more intense emissions enable the CaWO4:Eu3+ phosphors with high doping concentrations to have great potential to be used as efficient phosphors in the future. |
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| Keywords: | CaWO4:Eu3+ Judd-Ofelt theory doping concentration photoluminescence |
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