Preparation and luminescence properties of Tb3+-doped glass ceramics containing Ba3Gd(PO4)3

Tb 3+ -doped transparent glass ceramics (GCs) containing Ba 3 Gd(PO 4 ) 3 crystal phase were prepared by the melting crystallization method. The heat treatment condition for GCs was determined as 740 °C/2 h by differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron micros...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2022-04, Vol.33 (10), p.7781-7791
Main Authors: Wang, Qianwen, Yan, Yimeng, Zhao, Tianli, Huo, Honghong, Zhang, Hongbo, Su, Chunhui
Format: Article
Language:English
Subjects:
Bridgman method
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chromaticity
Crystal structure
Crystallization
Doping
Emission
Energy
Glass ceramics
Heat resistance
Heat treatment
Lasers
Light emitting diodes
Luminescence
Materials Science
Optical and Electronic Materials
Optical properties
Scanning electron microscopy
Single crystals
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Summary:Tb 3+ -doped transparent glass ceramics (GCs) containing Ba 3 Gd(PO 4 ) 3 crystal phase were prepared by the melting crystallization method. The heat treatment condition for GCs was determined as 740 °C/2 h by differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmittance curves. The optical energy bandgap values of glass ceramics ( E g =2.58 eV) are lesser than glass ( E g =3.47 eV). The fluorescence emission intensity results determined that the optimum doping concentration of Tb 3+ was 0.4%. The reason for the concentration quenching is electrical multipolar interaction. It is notable that the emission intensity of Tb 3+ with the same doping concentration in glass ceramics is stronger than that in precursor glass. The mechanism of enhanced luminescence is also discussed. The chromaticity coordinates move from the blue light region to the green light region with the change of concentration of Tb 3+ . Therefore, Tb 3+ -doped glass ceramics containing Ba 3 Gd(PO 4 ) 3 phase have color tunability and potential application value in solid-state lighting field.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-022-07929-z