1. Comparing to the previous spectrum, the low energy part of broad band a little wider while the high energy parts tail is finishing at lowest energy more rapidly. The high energy band possesses a maximum centered at ca. 164 nm (61610 cm -1 ) with a shift to observed in GAB:3%Eu of ca. 1360-1370 cm -1 . A broad GAB:Eu excitation band situated between 175-286 nm (57150-34950 cm -1 ) is in GAB:Eu,Tb composed from at least 7 sub-bands, with total maximum at 235 nm (42550 cm -1 ) and local maxima at 182, 190, 199, 213, 229 and 262 nm (54950, 52650, 50250, 46950, 43650 and 38150 cm -1 , correspondingly);One with broad bands, covering the range 100 -272 nm and the second which consists of 4f-f transitions
2. These lines are not located at areas of observed Gd 3+ lines and probable are attributed to 4f-4f Tb 3+ or electronic part of the 4f-5d transitions. At 253.3 and 254.2 (39480 and 39340 cm -1 ) well separated lines can be observed and assigned to Gd 3+ 4f-f transitions. Besides them, a lot of lines can be observed ca;shape of bands located at 235, 245 and 265 nm sharp lines can be observed at,2006
3. Eu 3+ ions in the highly symmetrical octahedral site in Ba 2 MgWO 6 double perovskite;N Miniajluk;J. Alloys Compd,2019
4. Pr 3+ doped BaNb 2 O 6 reddish orange emitting phosphor for solid state lighting and optical thermometry applications;S Jana;J. Alloys Compd,2020
5. New strategy of designing a novel yellowemitting phosphor Na 4 Hf 2 Si 3 O 12 :Eu 2+ for multifunctional applications;Q Wei;J. Alloys Compd,2020