1.河北大学 物理科学与技术学院, 河北 保定 071002
[ "朱红波(1980-),男,河北保定人,博士研究生,2007年于华北电力大学获得硕士学位,主要从事发光材料的研究。E-mail: yingying7066@126.com" ]
[ "王志军(1979-),女,河北沧州人,博士,教授,博士研究生导师,2016年于北京交通大学获得博士学位,主要从事发光与显示材料的研究。E-mail: wangzj1998@126.com" ]
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朱红波, 师学丽, 吴素玉, 等. Sr6Ca4(PO4)6F2:Eu2+, Mn2+的发光性能调控[J]. 发光学报, 2020,41(6):670-678.
Hong-bo ZHU, Xue-li SHI, Su-yu WU, et al. Manipulation of Luminescence Properties of Sr6Ca4(PO4)6F2:Eu2+, Mn2+[J]. Chinese Journal of Luminescence, 2020,41(6):670-678.
朱红波, 师学丽, 吴素玉, 等. Sr6Ca4(PO4)6F2:Eu2+, Mn2+的发光性能调控[J]. 发光学报, 2020,41(6):670-678. DOI: 10.3788/fgxb20204106.0670.
Hong-bo ZHU, Xue-li SHI, Su-yu WU, et al. Manipulation of Luminescence Properties of Sr6Ca4(PO4)6F2:Eu2+, Mn2+[J]. Chinese Journal of Luminescence, 2020,41(6):670-678. DOI: 10.3788/fgxb20204106.0670.
以Sr,6,Ca,4,(PO,4,),6,F,2,为基质、Eu,2+,/Mn,2+,为掺杂离子、H,3,BO,3,为助剂,利用固相法制备了系列发光材料。由X射线衍射图可知,材料的相是单一的。利用Mn,2+,离子的浓度猝灭效应以及Eu,2+,-Mn,2+,能量传递过程中存在的"瓶颈效应"和"反瓶颈效应"解释了Sr,6,Ca,4,(PO,4,)F,2,:Eu,2+,,Mn,2+,量子效率降低的原因。通过添加助剂H,3,BO,3,及调控阳离子的方式有效地提高了Sr,6,Ca,4,(PO,4,)F,2,:Eu,2+,,Mn,2+,的量子效率,采用精修手段分析了发光中心所处晶体场环境的变化情况,并解释了两种调控过程中Eu,2+,和Mn,2+,发射强度变化的原因。
In this work, the Sr,6,Ca,4,(PO,4,),6,F,2, is selected as host compound. The Eu,2+,/Mn,2+, ions are selected as doped ions. H,3,BO,3, is used as agent. The phosphors are prepared by the solid-state method. The single-phase was proved by the XRD pattern of phosphor. There are two reasons for the decrease of quantum efficiency of Sr,6,Ca,4,(PO,4,)F,2,:Eu,2+, Mn,2+,. One is the concentration quenching effect of Mn,2+, and the other is "bottleneck effect" and "anti-bottleneck effect" in the energy transfer of Eu,2+,-Mn,2+,. The quantum efficiency of Sr,6,Ca,4,(PO,4,)F,2,:Eu,2+, Mn,2+, can be enhanced by doping auxiliary agent H,3,BO,3, and regulating cations. For the luminescent centers of Eu,2+, and Mn,2+, their crystal field environments can be analyzed by the data of refinement, and their emission intensities in the two manipulation methods can be also explained.
发光Sr6Ca4(PO4)6F2能量传递阳离子替换
luminescenceSr6Ca4(PO4)6F2energy transfercation substitution
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