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Na2Ca2.92Si6O16:0.08Eu3+荧光粉的制备及其发光特性研究

高世杰 王华 张珊珊 乔利 毛近隆

高世杰, 王华, 张珊珊, 乔利, 毛近隆. Na2Ca2.92Si6O16:0.08Eu3+荧光粉的制备及其发光特性研究[J]. 华南师范大学学报(自然科学版), 2019, 51(4): 21-25. doi: 10.6054/j.jscnun.2019059
引用本文: 高世杰, 王华, 张珊珊, 乔利, 毛近隆. Na2Ca2.92Si6O16:0.08Eu3+荧光粉的制备及其发光特性研究[J]. 华南师范大学学报(自然科学版), 2019, 51(4): 21-25. doi: 10.6054/j.jscnun.2019059
GAO Shijie, WANG Hua, ZHANG Shanshan, QIAO Li, MAO Jinlong. Preparation and Luminescence Properties of Na2Ca2.92Si6O16:0.08Eu3+ Phosphors[J]. Journal of South China normal University (Natural Science Edition), 2019, 51(4): 21-25. doi: 10.6054/j.jscnun.2019059
Citation: GAO Shijie, WANG Hua, ZHANG Shanshan, QIAO Li, MAO Jinlong. Preparation and Luminescence Properties of Na2Ca2.92Si6O16:0.08Eu3+ Phosphors[J]. Journal of South China normal University (Natural Science Edition), 2019, 51(4): 21-25. doi: 10.6054/j.jscnun.2019059

Na2Ca2.92Si6O16:0.08Eu3+荧光粉的制备及其发光特性研究

doi: 10.6054/j.jscnun.2019059
基金项目: 

山东省重点研发计划项目 2017CXGC1307

山东省高等学校科技计划项目 J18KA292

山东中医药大学仪器开发专项项目 2018yq12

详细信息
    通讯作者:

    毛近隆,副教授,Email:sys209@163.com

  • 中图分类号: O614.33

Preparation and Luminescence Properties of Na2Ca2.92Si6O16:0.08Eu3+ Phosphors

  • 摘要: 采用高温固相法制备了一系列Eu3+掺杂的Na2Ca3Si6O16红色荧光粉.用X射线粉末衍射仪表征了荧光粉Na2Ca3-xSi6O16:xEu3+的结构.研究显示,Eu3+的掺入并未使Na2Ca3Si6O16晶体产生杂相.采用荧光分光光度计分析了Na2Ca3-xSi6O16:xEu3+ 的光学性质. Na2Ca3-xSi6O16:xEu3+荧光粉发红光,其中以波长611 nm的发射峰强度最强. Eu3+的掺杂对Na2Ca3-xSi6O16:xEu3+荧光粉发射光谱的峰形和峰位置无明显影响,但发光强度与Eu3+的掺杂量(摩尔分数)有关,当Eu3+的掺杂量为0.08时,Na2Ca3-xSi6O16:xEu3+荧光粉的发光强度达到最大值,掺杂量继续增大时会发生浓度淬灭现象,这可能是由多电子偶极相互作用引起的.结果表明:Na2Ca2.92Si6O16:0.08Eu3+荧光粉是一种潜在的可用于白光LED的红色发光材料.
  • 图  1  Na2Ca3-xSi6O16:xEu3+荧光粉的XRD谱

    Figure  1.  The XRD patterns of Na2Ca3-xSi6O16:xEu3+ phosphor

    图  2  Na2Ca2.92Si6O16:0.08Eu3+的激发光谱

    Figure  2.  The excitation spectra of Na2Ca2.92Si6O16:0.08Eu3+

    图  3  Na2Ca2.92Si6O16:0.08Eu3+荧光粉的发射光谱

    Figure  3.  The emission spectra of Na2Ca2.92Si6O16:0.08Eu3+

    图  4  不同Eu3+掺杂量的Na2Ca3Si6O16荧光粉的发射光谱

    Figure  4.  The emission spectra of Eu3+ doped Na2Ca3Si6O16 phosphor at different doping x values

    图  5  在波长393 nm的紫外光激发下荧光粉Na2Ca2.92Si6O16:0.08Eu3+的CIE色度图

    Figure  5.  The CIE chromaticity coordinates of Na2Ca2.92Si6O16: 0.08Eu3+phosphor excited at 393 nm

    图  6  Na2Ca2.92Si6O16:0.08Eu3+ 的发射强度随温度的变化

    Figure  6.  The variation of emission intensity of the phosphor Na2Ca2.92Si6O16:0.08Eu3+ with temperature difference

    图  7  不同温度测试的归一化荧光强度变化

    Figure  7.  The change of the normalized fluorescence intensity messured at different temperatures

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出版历程
  • 收稿日期:  2019-03-15
  • 刊出日期:  2019-08-25

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