White-blue long persistent luminescence in Ca2Ge7O16:Tb3+ via persistent energy transfer

Synthesis and luminescence properties of Cr2O3-CaO-GeO2 glass and glass ceramics for broadband NIR-LEDs

“…These emissions result from the growth of Cr 3+ -doped Ca 2 Ge 7 O 16 in the glass matrix. While Ca 2 Ge 7 O 16 has been reported as a host material for rare-Earth doped phosphors, [39][40][41] this is the first report of a Cr 3+ -doped Ca 2 Ge 7 O 16 phosphor. The PL bands corresponding to Cr 4+ were not recognized for all samples.…”

La2O2CO3:Tb3+ one-dimensional nanorod with green persistent luminescence

“…The excitation and emission spectra are used to illustrate the photoluminescent property of La 2 O 2 CO 3 :1%Tb 3+ nanorods (the doping content of 1% has been reported to be a suitable value for preparing Tb 3+ -doped luminescent phosphors), 5,23,28,29 as shown in Fig. 4a.…”

“…[1][2][3][4] PLNPs are playing an important role in multidisciplinary elds because of their broad applications, such as in safety signage, night-vision surveillance, latent ngerprint images, decoration and biomedicine. [5][6][7][8][9] Nowadays, only a few terbium doped bulk-phosphors such as Lu 2 O 3 :Tb 3+ , 10 SrAl 2 O 4 :Tb 3+ etc, 11 have demonstrated their green aerglow. The synthesis method of these materials is a solidstate method, yet almost no successful chemical route can be traced to perfect the size, morphology and dispersion for PLNPs.…”

Effect of Pr3+ on Site Preferences of Eu2+ in NaBaScSi2O7 and Its Optical Properties

“…The properties of the phosphors and specific applications are strongly relied on the structure of traps. [5][6][7] As reported, [8][9][10][11][12] LPL phosphor, what makes it special is that the emission process can last for several minutes or hours after the stoppage of the excitation, is considered a special case of thermally stimulated luminescence materials, where the energy is stored in suitable traps and then the release is induced by the thermal energy available at room temperature. However, for PSL phosphors, it can hardly be released because the traps are deep enough to immobilize the carriers permanently at room temperature.…”