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化工新型材料  2019, Vol. 47 Issue (11): 87-93    
  新材料与新技术 本期目录 | 过刊浏览 | 高级检索 |
Mg2+或Zn2+掺杂的Ca(WO4)1-x(MoO4)x∶Eu3+荧光粉的制备及发光性能研究
武超, 李峰*, 范伟, 张静, 孙杰
西安理工大学材料科学与工程学院,西安710048
Preparation and luminescent properties of Mg2+/Zn2+ doped Ca(WO4)1-x(MoO4)x∶Eu3+
Wu Chao, Li Feng, Fan Wei, Zhang Jing, Sun Jie
School of Materials Science and Engineering,Xi'an University of Technology,Xi'an 710048
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摘要 以三氧化钨(WO3)、三氧化钼(MoO3)、碳酸钙(CaCO3)和三氧化二铕(Eu2O3)为原料,通过高温固相法制备了Eu3+激活的钨钼酸钙Ca(WO4)1-x(MoO4)x∶Eu3+红色荧光粉,探究固溶成分变化对材料发光特性的影响。在Eu3+和Li+摩尔分数均为10%条件下,钨酸根离子(WO2-4)被不同摩尔分数的钼酸根离子(MoO2-4)替换,Ca2+被不同摩尔分数的Mg2+和Zn2+替换。通过X射线衍射仪对样品进行结构分析,通过激发光谱和发射光谱对所制样品的发光性能进行研究。结果表明:当焙烧温度为800℃,(MoO4)2-摩尔分数为25%,Li+和Eu3+摩尔分数均为10%,Mg2+摩尔分数为1%时,荧光粉的发光强度最好,其激发峰位于~352nm处,发射峰在~612nm处;Zn2+摩尔分数为3%时,荧光粉发光强度最好,其激发峰位于~294nm处,发射峰在~612nm处。
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武超
李峰
范伟
张静
孙杰
关键词:  高温固相法  钨钼酸盐  红色荧光粉    
Abstract: White light-emitting diodes (WLEDs) has been widely research owing to their vast merits of high luminescence efficiency,energy saving,long lifetime and environmentally friendly.In order to obtain high efficiency red phosphor,a Ca(WO4)1-x(MoO4)x∶Eu3+ solution was made,which was activated by Eu3+cation and to explore how the component changed in solid solution influenced the illuminant properties of the material.The single-phase red phosphor was synthesized via a conventional high-temperature solid-state reaction route using WO3,MoO3,CaCO3 and Eu2O3.Based on the precursor,Eu3+ and Li+ were kept constant as 10% while (WO2-4) were replaced by (MoO4)2- with different molar percentages.Meanwhile,Ca2+ was replaced by different concentrations of Mg2+ and Zn2+.The structure of the samples was analyzed by XRD,while the luminescent properties of the samples were studied by excitation spectrum and emission spectrum.The result indicated that when the calcination temperature was 800℃,(WO2-4) substitute for (MoO4)2- molar percentage of 25%,Li+ and Eu3+ doping concentration of 10%,Mg2+ doping concentration of 1%,the luminescence properties of the phosphor was the strongest.Its excitation peak was located at about 352nm,the emission peak was emitted at about 612nm.When doping Zn2+with a concentration of 3% had the strongest luminescence properties,the excitation peak is located at about 294nm,and the emission peak located at about 612nm.
Key words:  high temperature solid state method    tungsten molybdate    red phosphor
收稿日期:  2018-05-31                出版日期:  2019-11-20      发布日期:  2019-12-04      期的出版日期:  2019-11-20
基金资助: 国家自然科学基金(51202189);陕西省自然科学基金(2011JQ6005);陕西省教育厅科技研究计划(11JK0825)
通讯作者:  李峰(1977-),男,博士,副教授,从事光电功能材料研究工作。   
作者简介:  武超(1993-),男,硕士,研究方向为光电功能材料。
引用本文:    
武超, 李峰, 范伟, 张静, 孙杰. Mg2+或Zn2+掺杂的Ca(WO4)1-x(MoO4)x∶Eu3+荧光粉的制备及发光性能研究[J]. 化工新型材料, 2019, 47(11): 87-93.
Wu Chao, Li Feng, Fan Wei, Zhang Jing, Sun Jie. Preparation and luminescent properties of Mg2+/Zn2+ doped Ca(WO4)1-x(MoO4)x∶Eu3+. New Chemical Materials, 2019, 47(11): 87-93.
链接本文:  
https://www.hgxx.org/CN/  或          https://www.hgxx.org/CN/Y2019/V47/I11/87
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