Journal
JOURNAL OF LUMINESCENCE
Volume 237, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2021.118151
Keywords
Ca2M3(SiO4)(2)(PO4)O (M = LaY); Plant growth LEDs; D-5(0) -> F-7(4) transition; Red emitting
Categories
Funding
- Talent training project in Hebei [A201901059]
- Hebei Master's Innovation [CXZZSS2020121]
- National Natural Science Foundation of China [51671166]
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A series of far-red-emitting phosphors were successfully synthesized and characterized, with one phosphor showing a 1.6 times enhancement in photoluminescence intensity. These findings provide reference for the development of Eu3+-doped phosphors for plant cultivation LEDs.
A series of far-red-emitting Ca2M3(SiO4)(2)(PO4)O (M = La, Y) (CMSPO):xEu(3+) (x = 0.05, 0.10, 0.20, 0.30, 0.40 and 0.50) phosphors were successfully synthesized by high-temperature solid-phase reaction. The fabricated samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), fourier transform infrared (FT-IR), ultraviolet-visible diffuse reflectance (UV-Vis DR), photoluminescence excitation (PLE) and emission (PL) spectra. Under 394 nm excitation, the samples show red emission locating at 618 nm, which is attributed to the D-5(0) -> F-7(2) electric dipole (ED) transition. Also, a deep red-emitting originating from D-5(0) -> F-7(4) transition matches well with the absorption spectra of P-R and P-FR regions. It is also found that the PL intensity of CLSPO:0.30Eu(3+) is enhanced about 1.6 times compared with the CYSPO:0.20Eu(3+). Additionally, the results demonstrated that the phosphors can provide reference for the development of Eu3+-doped phosphors that can be used for plant cultivation LEDs.
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