Luminescence and light yield of (Gd2Y)(Ga3Al2)O12:Pr3+ single crystal scintillators

Insights into the Relationship between Crystallite Size, Sintering Pressure, Temperature Sensitivity, and Persistent Luminescence Color of Gd2.97Pr0.03Ga3Al2O12 Powders and Ceramics

“…For the single crystal, intensity of the bands was much lower and separation of the band into two components is clearly observed. The bands peaked at 285 and 240 nm and were assigned to the lowest 4f­( 3 H 4 ) → 5d 1 and 4f­( 3 H 4 ) → 5d 2 transitions, respectively . It is worthy to note that when comparing to single crystals, in the case of both powders and ceramics, both 5d bands were closer together and shifted toward higher energy.…”

“…The bands peaked at 285 and 240 nm and were assigned to the lowest 4f( 3 H 4 ) → 5d 1 and 4f( 3 H 4 ) → 5d 2 transitions, respectively. 34 It is worthy to note that when comparing to single crystals, in the case of both powders and ceramics, both 5d bands were closer together and shifted toward higher energy. The interfered areas of the f−d bands near 290 nm and the f−f 3 P 2 , 1 L 6 , 3 P 1 , and 3 P 0 bands in blue ( 3 P J ) are gathered in Table 2.…”