The effect of terbium concentration on the luminescent properties of yttrium oxysulfide phosphor for FED application

Structure and Emissive Properties of Heterobimetallic Ln–Au Coordination Polymers: Role of Tb and Eu in Non-aurophilic [nBu4N]2[Ln(NO3)4Au(CN)2] versus Aurophilic Ln[Au(CN)2]3·3H2O/3D2O Chains

“…There is little difference in luminescence spectra with variation in terbium loading below 8%, at which point the 430 nm Au(CN) 2 − MLCT peak red-shifts to 435 nm because of the crystal field effect of the added Tb 3+ ions. 45,46 Table 2 gives the specific excitation and emission wavelengths corresponding from the Au-based emission to Tb 3+ lines is observed as evidenced by a quenching of the Au-based emissions, although both emitting moieties are still independently observable at these low dopings. Figure 6 shows the impact of doping Eu 3+ into the nonaurophilic [ n Bu 4 N] 2 [Eu x Gd 1−x (NO 3 ) 4 Au(CN) 2 ] framework.…”

Technological aspects for Tb3+-doped luminescent sol–gel nanomaterials

“…The four bands from 5 D 4 excited state in emission spectra occur and correspond to the blue ( 5 D 4 -7 F 6 ), green ( 5 D 4 -7 F 5 ), yellow ( 5 D 4 -7 F 4 ) and red ( 5 D 4 -7 F 3 ) transitions of Tb 3 þ ions. Furthermore, emission from the higher 5 D 3 excited level located in the blue spectral range can be observed [7,24,26]. However, the blue emission from the 5 D 3 state of Tb 3 þ ions is rarely registered due to the non-radiative multiphonon relaxation (energy gap between the 5 D 3 and the 5 D 4 states is about 5600 cm À 1 and the maximum phonon energy in silica glasses is about 1100 cm À 1 ).…”

“…Depending on the concentration of an optically active dopant, the varied emission ranging blue to green can be observed [7,24]. This feature allows to use such materials in many areas as the light sources or displays [26].…”

Спектрально-люминесцентные свойства кристаллов ZrO-=SUB=-2-=/SUB=--Sc-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=--Tb-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=-

“…Материалы, легированные ионами тербия, привлекают значительный интерес исследователей. Это обусловлено широким спектром их применений при производстве светодиодов, рентгеновских и катодолюминесцентных экранов, сцинтилляторов, а также потенциально возможным использованием этих материалов для разработки объемной оптической памяти, в дозиметрии высокоэнергетического излучения, медицинской диагностике и биовизуализации [1][2][3][4][5][6][7].…”