Journal
OPTICAL MATERIALS
Volume 131, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2022.112593
Keywords
Ba9La2Si6O24; Bi3+/Mn2+ doping; Energy transfer; Luminescence
Categories
Funding
- Training Program of Henan Core Teacher, China [2019GGJS219]
- Key Technologies R&D Program of Henan Province, China [212102210605]
- Key Research Project of Henan Higher Education, China [22B140009]
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This study investigates the potential application of Bi3+/Mn2+ doped Ba9La2Si6O24 phosphors in light-emitting diodes. The synthesized phosphors exhibit a single phase and absorption to ultraviolet light. The energy transfer between Bi3+ and Mn2+ ions allows for tunable luminescence. The Ba9La2Si6O24:0.03Bi(3+)/0.02Mn(2+) and Ba9La2Si6O24:0.03Bi(3+)/0.03Mn(2+) phosphors can generate white light under ultraviolet light excitation.
A few of Bi3+/Mn2+ doped Ba9La2Si6O24 phosphors were synthesized in air by the solid state reactions at 1400 degrees C for the purpose of investigating their possible uses in the light-emitting diodes. The phase and luminescence performance were surveyed using the X-ray diffractometer and spectrometer, respectively. The results demonstrate the single phase and absorbance to the ultraviolet light of the synthesized phosphors. There is the Bi3+ -> Mn2+ energy transfer, which gives rise to the tunable luminescence of the Bi3+/Mn2+ codoped Ba9La2Si6O24 phosphors. Upon the ultraviolet light excitation, the white light is generated by the Ba9La2Si6O24:0.03Bi(3+)/0.02Mn(2+) and Ba9La2Si6O24:0.03Bi(3+)/0.03Mn(2+) phosphors.
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