Электронный каталог

Статья

Korzhik, M.
Bright Green Emitting Lu&sub(2)CaMg&sub(2)(SiO&sub(4))&sub(3): Tb*3*+ Garnet-Structure Phosphor / M.Korzhik, Y.Talochka, [a.o.]. – Text : electronic // Optical Materials. – 2026. – Vol. 179. – P. 118333. – URL: https://doi.org/10.1016/j.optmat.2026.118333. – Bibliogr.: 52.

Garnet structure silicates of alkaline earth and rare earth (RE) metals corresponding to the general formula Lu&sub(2-x)Tb&sub(x)CaMg&sub(2)(SiO&sub(4))&sub(3) were produced by the modified sol-gel method for the first time. X-ray diffraction phase analysis confirmed the formation of the dominant crystalline phase Lu&sub(2)CaMg&sub(2)(SiO&sub(4))&sub(3) with a garnet structure for samples with varying terbium concentrations: x = 0.020, 0.075, 0.150. Analysis by scanning electron microscopy and X-ray diffraction revealed the formation of large-sized crystallites with developed morphology. Photoluminescence spectra are formed by Tb&sup(3+) transitions &suP(5)D&sub(3) *> &sup(7)F&sub(j) and &sup(5)D&sub(4) *> &sup(7)F&sub(j) in a wide spectral range, with an emphasis on bright green luminescence. The features of the luminescence spectrum depend on the concentration of Tb&sup(3+) ions. It is shown that Lu&sub(2)CaMg&sub(2)(SiO&sub(4))&sub(3) possesses the yield of scintillations as twice as high as the YAG:Ce yield when excited by alpha-particles. The combination of the obtained structural and optical characteristics confirms the prospects of the material for creating highly efficient phosphors for different applications including scintillators, converters of the irradiation of isotope sources into the light for the electricity production purposes and radioluminescent lighting.



Спец.(статьи,препринты) = С 36 - Физика твердого тела$
Спец.(статьи,препринты) = С 37 - Оптика$
ОИЯИ = ОИЯИ (JINR)2026