Growth of large-sized Ce:Y3Al5O12 (Ce:YAG) scintillation crystal by the temperature gradient technique (TGT)

Crystal growth and optical properties of LuYAG:Ce single crystal

“…The Ce 3 þ 4f-5d 1 and 5d 2 transitions are related to the absorption bands at about 454 and 339 nm, respectively. Compared to the absorption bands of YAG:Ce at 460 nm and 340 nm [22,26], the shapes of the LuYAG:Ce absorption bands do not appear to change relative to the YAG:Ce crystal, but their integrated absorption positions associated with the 4f-5d transition shift to shorter wavelengths. As we know, the transitions are subject to the crystal field splitting of the host.…”

“…Compared with Ce 3 þ -doped YAG [22][23], the absorption positions associated with the 4f-5d transition shifted to shorter wavelengths and the relative intensity of the emission of the antisite defect is reduced remarkably. The reduction of the antisite defect emission reveals that introducing Lu ions into YAG can reduce the antisite defect.…”

Combinatorial Optimization of (YxLu1−x−y)3Al5O12:Ce3y Green-Yellow Phosphors

“…This process yielded another new library with a 6 × 9 array with the Y contents from x ) 0.1 to 0.6 and Ce contents from y ) 0.003 to 0.027. The 365 nm UV photoluminescent photograph and composition map are shown in Figure 2b, where the highest UV photoluminescent compositions are found at x ) 0.2, y ) 0.006-0.012, that are the points of (2,2), (2,3), (2,4) in the 6 × 9 array.…”

Nanodefects in YAG:Ce-Based Phosphor Microcrystals

“…Additional luminescence bands can be observed in the ultraviolet (UV) spectral region at 310, 370, and 435 nm [14,15]. In References [16,17], it was shown that, when the YAG:Ce crystal is excited by X-rays, intense luminescence can be observed in a wide spectral range of 250-600 nm, with three wide bands at 300, 360, and 530 nm. A similar luminescence spectrum was found under gamma excitation by the 137 Cs source in Reference [18].…”