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Effects of synthesis temperature on the microstructures and photoluminescent properties of Eu2O3-doped Sr2−xBaxSiO4 phosphors

  • Yung-Mao Cheng
  • Yun-I. Ho
  • Sung-Mao Wu
  • Jing Liu
  • Cheng-Fu YangEmail author
  • Chean-Cheng SuEmail author
Technical Paper
  • 7 Downloads

Abstract

In this study, Sr2−xBaxSiO4 (x = 0, 0.2, and 0.4) was used as the host material and Eu2O3 was used as the activator to produce commercial Sr2SiO4:Eu, Sr1.8Ba0.2SiO4:Eu, and Sr1.6Ba0.4SiO4:Eu phosphors by a solid-state reaction method. All the Sr2−xBaxSiO4–Eu phosphors were synthesized in the temperature range of 1000–1300 °C for 2 h. XRD patterns revealed that when different BaO contents and synthesis temperatures were used, all the Sr2−xBaxSiO4–Eu phosphors had similarly crystalline properties. The mainly crystalline phase changed from the (121) to the (103) plane as the BaO content changed from 0 to 0.2. In the case of all Sr2−xBaxSiO4–Eu powders, secondary or unknown phases were not observed if the synthesis temperature was lower than 1000 °C, and only the precursor SiO2 phase was observed in the 1000 °C-synthesized Sr2SiO4–Eu powder. This study also thoroughly investigated the effects of different BaO contents and synthesis temperatures on the photoluminescent properties of Sr2−xBaxSiO4–Eu phosphors. We show that the photoluminescent properties of Sr2−xBaxSiO4–Eu phosphors are dependent on the BaO content and synthesis temperature.

Notes

Acknowledgements

The authors would like to acknowledge the financial support of this Project by MOST 106-2221-E-390-019 and MOST 105-2622-E-390-003-CC3.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Electrical EngineeringNational University of KaohsiungKaohsiungTaiwan
  2. 2.Department of Chemical and Material EngineeringNational University of KaohsiungKaohsiungTaiwan
  3. 3.School of Information EngineeringJimei UniversityXiamenPeople’s Republic of China

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