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Synthesis, Structural, and Photoluminescence Studies of Tb3+ Activated Y2SiO5 Phosphor for Display Devices
Abstract
The synthesis and luminescence analysis of Tb3+-activated phosphors were reported. Y2SiO5 phosphors were synthesized by a modified solid-state reaction method with a variable doping concentration of Tb3+ ion (0.5–2.5 mol.%). As synthesized, the phosphors were characterized by X-ray diffraction (XRD) analysis. The XRD pattern confirmed the monoclinic structure of the prepared phosphor. Scanning electron microscopy and High-Resolution Transmission Electron Microscopy (HRTEM) studies revealed nearly uniform particle size distribution in the prepared phosphors. The photoluminescence excitation spectra of the Y2SiO5:Tb3+ (0.5–2.5 mol.%) phosphor displayed one broad, intense peak at 258–277 nm. When excited at the 258 nm wavelength, the phosphors showed emission peaks at 553 nm (5D4®7F5), 544 nm (5D4®7F5) and 489 nm (5D4®7F6). The 1931 CIE (x,y) chromaticity coordinates showed the distribution of the spectral region calculated from the photoluminescence emission spectra. The values of x = 0.25 and y = 0.46 were very close to light green emission. Therefore, the prepared phosphor is very useful for light-emitting diode (green component) applications.
About the Authors
V. Mishra
Bhilai Institute of Technology Raipur
India
India
Department of Physics,
Chhattisgarh
S. Singh
Sardar Patel University
India
India
Department of Physics,
Balaghat, M.P.
V. Dubey
North-Eastern Hill University (NEHU)
India
India
Department of Physics,
Shillong, Meghalaya
D.S. Kshatri
SSIMPT Raipur
India
India
Department of Physics,
Chhattisgarh
P. Patharia
Guru Ghasidas University Bilaspur
India
India
Department of Electronics & Communication Engineering,
Chhattisgarh
N. Dubey
Govt. V.Y.T. PG. Autonomous College Durg
India
India
Department of Physics,
Chhattisgarh
M.C. Rao
Andhra Loyola College
India
India
Department of Physics,
Vijayawada
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Review
For citations:
Mishra V., Singh S., Dubey V., Kshatri D., Patharia P., Dubey N., Rao M. Synthesis, Structural, and Photoluminescence Studies of Tb3+ Activated Y2SiO5 Phosphor for Display Devices. Zhurnal Prikladnoii Spektroskopii. 2024;91(1):160.
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