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Photoluminescence Studies on Tb3+ Doped Li4Zn(PO4)2 Phosphors
Abstract
Novel Li4Zn(PO4)2:Tb3+ green-light-emitting phosphors were synthesized using the combustion process. A thorough investigation was done on the crystal phase, shape, morphology and luminescence properties, including decay curves. With the P21(4) space group, the Li4Zn(PO4)2:Tb3+ phosphors showed a monoclinic structure. It was calculated that the average crystal size was about 80 nm. Under excitation at 250 nm, a strong green emission peak at 545 nm attributed to 5D4→7F5 transition was observed in the present host. It was found that the emission intensity depended on the dopant concentration.
Supporting agencies: The authors are thankful to Central Laboratory, GITAM School of Sciences for providing SEM.
About the Authors
A. Naveen
Koneru Lakshmaiah Education Foundation (Deemed to be University); Chaitanya (Deemed to be University)
India
India
Akinapally Naveen - Department of Engineering Physics, Koneru Lakshmaiah Education Foundation (Deemed to be University); Department of Physics & Electronics, Chaitanya (Deemed to be University)
Guntur, A. P.; Telangana
M. Venkateswarlu
Koneru Lakshmaiah Education Foundation (Deemed to be University)
India
India
Department of Engineering Physics.
Guntur, A. P.
M. V.V.K. Srinivas Prasad
Koneru Lakshmaiah Education Foundation (Deemed to be University)
India
India
Department of Engineering Physics.
Guntur, A. P.
P. Tejeswara Rao
GITAM (Deemed to Be) University
India
India
Department of Physics, GITAM School of Science.
Andhra Pradesh, Visakhapatnam
N. Chandana
B.R. Ambedkar Open University
India
India
Department of Physics.
Hyderabad
M. Ravi
Government Polytechnic College
India
India
Kothagudem, Telangana
G. Giridhar
Acharya Nagarjuna University
India
India
Department of Nanotechnology.
A. P.
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Review
For citations:
Naveen A., Venkateswarlu M., Srinivas Prasad M.V., Tejeswara Rao P., Chandana N., Ravi M., Giridhar G. Photoluminescence Studies on Tb3+ Doped Li4Zn(PO4)2 Phosphors. Zhurnal Prikladnoii Spektroskopii. 2025;92(4):564.
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