Cathodoluminescence properties of yttrium aluminum garnet doped with Eu2+ and Eu3+ ions

Investigation of 515nm green-light emission for full color emission LaAlO3 phosphor with varied valence Eu

“…Specially, some phosphors doped with coexisting valence state to generate full color emission have been proposed by the researchers [16,17].…”

First-principle calculations on color center in Y–Al–O system

“…Such a discrepancy is expected when the DFT method is used. In the calculation for the relative stability analysis of defect states, all defect energy in the gap will be shifted by k = 1.80, 1.90, 1.87, 1.01 and 2.00 eV for a-Al 2 O 3 , Y 2 O 3 , YAP and YAG, respectively, as mentioned above in formula (2).…”

“…For example, the oxygen vacancy in YAP will trap the electron during the electron transferring and strongly modify/degrade high intrinsic scintillation performance. Recently, the color center in such Y-Al-O system materials has attracted many research interests [1][2][3][4][5][6][7][8][9][10]. Many experimental methods, including the optical absorption [11,12], photoluminescence (PL) [12,13], thermoluminescence (TL) [14,15], etc., have been used to investigate the rare-earth doped and undoped Y-Al-O system materials.…”

“…Alumina (a-Al 2 O 3 ), Yttria (Y 2 O 3 ) and three compounds: Y 3 Al 5 O 12 (YAG), YAlO 3 (YAP), Y 4 Al 2 O 9 (YAM) comprise the Y-Al-O system [1][2][3][4][5][6][7][8][9][10]. Both alumina and yttria are most important ceramic materials.…”

“…Both alumina and yttria are most important ceramic materials. All of alumina, YAG and YAP are important laser host materials [2][3][4]. YAP is as well as one of wide applied scintillating material.…”