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《材料导报》期刊社  2017, Vol. 31 Issue (6): 7-10    https://doi.org/10.11896/j.issn.1005-023X.2017.06.002
  材料研究 |
Eu3+对Na3Gd2(BO3)3∶Tb3+发光性能的影响及其能量传递
任强, 魏腾跃, 武秀兰, 霍哲哲, 王保兴
陕西科技大学材料科学与工程学院, 西安 710021
Influence of Eu3+ Doping on Luminescence Properties of Na3Gd2(BO3)3∶Tb3+
and the Relevant Energy Transfer Mechanism
REN Qiang, WEI Tengyue, WU Xiulan, HUO Zhezhe, WANG Baoxing
School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi’an 710021
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摘要 采用高温固相法制备了Na3Gd2(BO3)3∶Tb3+,Eu3+荧光粉,并对样品的物相组成、微观形貌、发光性能和能量传递进行了分析。结果表明,Na3Gd2-x(BO3)3∶xTb3+荧光粉在紫外和近紫外区域有较强的激发峰,在368 nm波长激发下,发射光呈绿色,Tb3+最佳掺杂量为x=0.04。随着在Na3Gd1.96(BO3)3∶0.04Tb3+中掺入Eu3+,Tb3+对Eu3+产生了以电偶极-电偶极相互作用为主的能量传递,且传递效率随Eu3+掺杂量的增加而逐渐增大。发射光谱中Tb3+的发射峰强度逐渐减弱,而Eu3+的发射峰强度逐渐增强,导致Na3Gd1.96-y(BO3)3∶0.04Tb3+,yEu3+荧光粉发光颜色由绿色向橙色变化。
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任强
魏腾跃
武秀兰
霍哲哲
王保兴
关键词:  荧光粉  Na3Gd2(BO3)3∶Tb3+,Eu3+  发光颜色  能量传递    
Abstract: Na3Gd2-x-y(BO3)3∶ xTb3+,yEu3+ phosphors were prepared by a high-temperature solid state reaction method. The phase composition, morphology, luminescence properties and energy transition of the phosphors were analyzed. The results show that the Na3Gd2-x(BO3)3∶xTb3+ phosphors can be efficiently stimulated by UV and near-UV light. Under 368 nm excitation, the best doping amount of Tb3+ is x=0.04 and the emission light is green.With the doping of Eu3+ in Na3Gd1.96(BO3)3∶0.04Tb3+,Tb3+ acts as an efficient sensitizer,which could enhance the emission intensity of Eu3+ by transferring absorbed excitation energy through dipole-dipole interaction mechanism. The energy transfer efficiency increases with the increase of the Eu3+. The emission intensity of Eu3+ increases and the emission intensity of Tb3+ decreases, leading to the multi-color emission tunability of Na3Gd1.96-y-(BO3)3∶0.04Tb3+,yEu3+ phosphors, and the emission color varies from green to orange.
Key words:  phosphor    Na3Gd2(BO3)3∶Tb3+    Eu3+    emitting color    energy transfer
               出版日期:  2017-03-25      发布日期:  2018-05-02
ZTFLH:  TB34  
  O482  
基金资助: 陕西省科技统筹创新工程计划项目(2013KTDZ03-02-01);陕西科技大学研究生创新基金
作者简介:  任强:男,1962年生,教授,主要研究方向为陶瓷及无机功能材料,E-mail:renq@sust.edu.cn
引用本文:    
任强, 魏腾跃, 武秀兰, 霍哲哲, 王保兴. Eu3+对Na3Gd2(BO3)3∶Tb3+发光性能的影响及其能量传递[J]. 《材料导报》期刊社, 2017, 31(6): 7-10.
REN Qiang, WEI Tengyue, WU Xiulan, HUO Zhezhe, WANG Baoxing. Influence of Eu3+ Doping on Luminescence Properties of Na3Gd2(BO3)3∶Tb3+
and the Relevant Energy Transfer Mechanism. Materials Reports, 2017, 31(6): 7-10.
链接本文:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.06.002  或          http://www.mater-rep.com/CN/Y2017/V31/I6/7
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