Laser site-selective excitation spectroscopy ofEu3+-doped yttrium aluminum garnet

Nanocrystalline lanthanide-doped Lu3Ga5O12garnets: interesting materials for light-emitting devices

“…The present attribution is also in agreement with the results obtained for an Eu 3+ -doped YAG single crystal [39] and for nanocrystalline Eu 3+ -doped YAG powders [40,41]. Besides, the luminescence spectrum is similar to that observed for an Eu 3+ -doped GGG [39]) and also for a Eu 3+ doped nanocrystalline GGG sample prepared by the Pechini method (about 160 cm −1 [43]). This behaviour indicates that the crystal field (CF) strength experienced by the Eu 3+ ions is lower for the LuGG host than for YAG and GGG garnet hosts.…”

Effect of grain size and concentration of active ions on structural and optical behavior of Eu3+-doped Y3Al5O12 nanocrystallites

“…The 5 D 1 emission could be observed even with 5 mol % of Eu 3+ as revealed by the good match between the calculated 5 D 1 -7 F 3,4 lines [13] and the observed spectra. However, not all transitions could be explained with the 5 D 0,1 [14]. The presence of Eu 3+ at the Al 3+ site (S 6 symmetry) has also been reported [15].…”

Luminescence of Eu3+ in α-Al2O3 powders

“…1 shows the SLJ energy levels of Eu 3+ in Y 2 O 3 . Recently, the spectra of Eu 3+ in YAlO 3 (YAP), Y 3 Al 5 O 12 (YAG) and Y 4 Al 2 O 9 (YAM) have been compared together at room temperature [1] and 3.5 K [2], as well as previous individual reports of these spectra and energy levels [3][4][5][6][7][8][9][10][11]. The site symmetry of Eu 3+ in these crystals is D 2 (YAG), C s (YAP) and four C 1 sites in YAM.…”