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Energy Transfer and Multicolor-Tunable Emissions of Sr3La6(SiO4)6:Ce3+, Tb3+, Eu3+

  • Wenfeng Li
  • Minfan Qiu
  • Yuanxing Li
  • Shaoan Zhang
  • Quanfeng Li
  • Wenxian Lin
  • Zhongfei MuEmail author
  • Fugen Wu
Article
  • 2 Downloads

Abstract

Multicolor-tunable materials have attracted extensive interest due to their unique advantages in applications of lighting and displays. In this paper, energy transfer from Ce3+ to Tb3+ occurred and the effective energy transfer efficiency (ηETE) of Ce3+-Tb3+ has been calculated to be as high as 36%. To obtain multicolor-tunable emissions, Eu3+ ions were successfully introduced into Ce3+–Tb3+ codoped Sr3La6(SiO4)6 samples. Furthermore, an energy transfer process from Ce3+ to Eu3+ ions has also been demonstrated by an energy transfer bridge of Tb3+. Meanwhile, we achieved the precise adjustment of purple, green, orange and red emissions of Sr3La6(SiO4)6: Ce3+, Tb3+, and Sr3La6(SiO4)6: Ce3+, Tb3+, Eu3+. In addition, Sr3La6(SiO4)6: Ce3+, Tb3+, Eu3+ phosphors exhibited a good thermal stability: their integrated emission intensities at 450 K still kept more than 90% of their initial intensity at room temperature. Therefore, these results might provide a novel multicolor-tunable phosphor for lighting and display application.

Keywords

Multicolor-tunable emission Ce3+–Tb3+–Eu3+ thermal stability energy transfer 

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Notes

Acknowledgments

This work is financially supported by the Science and Technology Program of Guangzhou, China (201804010257, 201707010324), Key Platforms and Research Projects of Department of Education of Guangdong Province (2016KTSCX031, 2017KTSC X054), National Natural Science Foundation of China (Grant Nos. 51602063). This work was also supported by the Youth Innovation Talents Program of Guangzhou Maritime University (F410515) of China.

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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.Experimental Teaching DepartmentGuangdong University of TechnologyGuangzhouPeople’s Republic of China
  2. 2.School of Optoelectronic EngineeringGuangdong Polytechnic Normal UniversityGuangzhouPeople’s Republic of China
  3. 3.School of Materials and EnergyGuangdong University of TechnologyGuangzhouPeople’s Republic of China

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