高等学校化学学报 ›› 2017, Vol. 38 ›› Issue (12): 2135.doi: 10.7503/cjcu20170620

• 研究论文: 无机化学 • 上一篇    下一篇

Mn2+掺杂NaBiF4∶Yb/Er体系的可调控上转换发光

苏越1,2, 雷朋朋1,2, 冯婧1(), 张洪杰1()   

  1. 1.中国科学院长春应用化学研究所稀土资源利用国家重点实验室, 长春 130022
    2.中国科学院大学, 北京 100049
  • 收稿日期:2017-09-15 出版日期:2017-12-10 发布日期:2017-11-22
  • 作者简介:联系人简介: 冯婧, 女, 博士, 副研究员, 主要从事稀土发光材料研究. E-mail: fengj@ciac.ac.cn .张洪杰, 男, 博士, 研究员, 中国科学院院士, 主要从事稀土功能材料研究. E-mail: hongjie@ciac.ac.cn
  • 基金资助:
    国家自然科学基金(批准号: 21371165, 21590794, 21210001, 21521092)和中国科学院前沿科学重点研究项目(批准号: YZDY-SSW-JSC018)资助

Tunable Upconversion Luminescence of Mn2+ Doping NaBiF4∶Yb/Er Particles

SU Yue1,2, LEI Pengpeng1,2, FENG Jing1,*(), ZHANG Hongjie1,*()   

  1. 1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry,Chinese Academy of Science, Changchun 130022, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-09-15 Online:2017-12-10 Published:2017-11-22
  • Contact: FENG Jing,ZHANG Hongjie E-mail:fengj@ciac.ac.cn;hongjie@ciac.ac.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21371165, 21590794, 21210001, 21521092) and the Frontier Science Research Project of Chinese Academy of Sciences, China(No.YZDY-SSW-JSC018)

摘要:

采用溶剂热法制备了不同Mn2+掺杂量的NaBiF4∶Yb/Er/Mn上转换发光体系, 研究了其形貌、 晶相、 上转换发光性能随Mn2+掺杂量的变化, 并探讨了该体系的能量传递机理. 实验结果表明, Mn2+的掺杂不会引起NaBiF4从六方相转变为立方相, 但会增大其尺寸; 同时在NaBiF4体系中, Mn2+可以与Er3+进行能量传递, 使红光发射得到增强, 并且随着Mn2+浓度的增加, 红/绿光发射强度比也会随之增大. 此外, 还考察了NaBiF4∶Yb/Er/Mn体系的变温发射光谱, 发现当温度升高时, 红/绿光强度比以及520 nm绿光与540 nm绿光发射强度比都总体上呈增大趋势.

关键词: NaBiF4, 上转换发光, 能量传递, 变温光谱, Mn2+掺杂

Abstract:

NaBiF4∶Yb/Er/Mn samples with different concentrations of Mn2+ were fabricated via the solvothermal method. Also, the morphology and crystal phase, the changes of upconversion luminescence(UCL) upon different doping amounts of Mn2+ were investigated. Meanwhile, the mechanism of energy transfer in NaBiF4∶Yb/Er/Mn was also discussed. The results indicate that, for NaBiF4∶Yb/Er, Mn2+ doping does not induce transition from hexagonal to cubic phase, but increases the size of the particles. Meanwhile, the energy transfer processes between Er3+ and Mn2+ can take place in NaBiF4 host, which eventually enhances the red emission to a certain degree. With the increasing of the concentration of Mn2+, the intensity ratio of red to green emission is also increased. In addition, the temperature-dependent UCL spectra of NaBiF4∶Yb/Er/Mn was investigated, and the intensity ratios of red to green emission and 520 nm green emission to 540 nm green emission are generally increased with elevated temperature.

Key words: NaBiF4, Upconversion luminescence, Energy transfer, Temperature-dependent spectrum, Mn2+ doping

TrendMD: