Preparation of Y3Al5O12:Eu phosphors by citric–gel method and their luminescent properties

Comparative study on the luminescent properties of Y3Al5O12:RE3+ (RE: Eu, Dy) phosphors synthesized by three methods

“…The excitation and emission lines of Eu 3+ become much sharper than those in amorphous YAG. Furthermore, it can be seen that the CTB of Eu 3+ in the excitation spectra of both samples in crystalline state shifts to higher energy (shorter wavelength) (244 nm) [16,17]. Moreover, the emission spectra of both samples are dominated by the 5 D 0 -7 F 1 (591 nm) magnetic-dipole transition accompanied by the disappearance of 5 D 0 -7 F 0 transition at 578 nm, which is characterized by orange-red emission.…”

Sol–gel synthesis, characterization and study of substitution effects in different gallium-containing garnets

“…The most popular garnet is yttrium aluminium garnet (Y 3 Al 5 O 12 , YAG) which possesses good thermal, chemical stability and doped with transition metal or lanthanide ions could be employed as the host material for multi-coloured phosphors [11][12][13][14][15][16][17][18][19][20][21][22][23][24]. By selecting corresponding lanthanide ions may be produced red, green and blue (RGB) emission for use in tricolour white light [25][26][27].…”

NIR fluorescence and visible upconversion studies of Nd3+ ions in calcium fluoroborate glasses

“…1 reveals low transmission (high absorption) in the region 400-1500 cm À1 . A close view of the spectra shows humps of very low intensity in the region 400-650 cm À1 which are all attributed to the metaloxygen bonds (Ca-O, Al-O, Ba-O) vibrations [22,23]. Peaks at 710, 940-1060 and 1380 cm À1 could be assigned to the bending vibrations (BV) of BO 4 group, stretching vibrations (SV) of BO 4 and stretching vibrations of BO 3 group respectively [24].…”