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Effect of Co-Doping Different Rare Earth Ions on CaB6O10:Sm3+, RE3+ (RE = Dy, Er, Gd, La, Nd, Tb) Phosphors
Ist Teil von
Journal of applied spectroscopy, 2023-07, Vol.90 (3), p.717-722
Ort / Verlag
New York: Springer US
Erscheinungsjahr
2023
Quelle
SpringerLink (Online service)
Beschreibungen/Notizen
Sm
3+
doped and RE
3+
(RE = Dy, Er, Gd, La, Nd, Tb)-co-doped CaB
6
O
10
phosphors were prepared at 800°C by the solid-state reaction method. The obtained powders were structurally characterized by X-ray diffraction and Fourier transform infrared analyses. The influences of co-doping rare earth ions on their luminescent properties were also investigated. The emission spectra of the CaB
6
O
10
:Sm
3+
phosphors consisted of some sharp emission peaks of Sm
3+
ions centered at 561, 601, 649, and 708 nm, generating bright orange–red light. The concentration quenching occurred when x equals 0.05 for CaB
6
O
10
:xSm
3+
phosphor. No remarkable differences were found from excitation spectra of co-doped phosphors CaB6O10:Sm
3+
, RE
3+
in contrast with that of phosphor CaB
6
O
10
:Sm
3+
. The introduction of charge compensator RE
3+
(RE = Dy, Er, Gd, La, Nd, Tb) into the host reduced the luminescence intensity of the CaB
6
O
10
:Sm
3+
phosphors.