Effects of Er3+ doping on the long-persistent luminescence properties of Ba4(Si3O8)2:Eu2+ phosphor

Dual mode NIR long persistent phosphorescence and NIR-to-NIR Stokes luminescence in La3Ga5GeO14: Cr3+, Nd3+ phosphor

“…To date, various novel fluorescent tags such as fluorescent dyes, semiconductor quantum dots, upconversion phosphors, and long persistent phosphors (LPPs) have been proposed and successfully applied in in vivo bio-imaging [7][8][9][10]. Among these fluorescent tags, long persistent phosphors in the region of biologically transparent window region (650-1100 nm) have been considered to be the most prominent candidates for this advanced biomedical application, since their emission lifetime is sufficiently long to permit late time-gated imaging [11][12][13].…”

Yellow Persistent Phosphor Ba13.35Al30.7Si5.3O70:Eu2+,Tm3+ from the Energy Regulation of Rare-Earth Ions

“…The PL spectrum consists of the asymmetric broad band with the main emission peak located at 580 nm and the wavelength ranging from 450 to 750 nm, which belongs to the allowed transition of 4f 6 5d 1 → 4f 7 . 11 BASO:0.3Eu 2+ can also be excited by a light source with the wavelength ranging from 250 to 520 nm, corresponding to 4f 7 → 4f 6 5d 1 that allowed the transition of Eu 2+ . 17 The PL spectrum of BASO:0.3Eu 2+ consists of the main emission peak located at 580 nm and a broad peak located at 500 nm.…”

“…By the excitation of 380 nm ultraviolet light, the sample BASO:0.3Eu 2+ shows intense yellow fluorescence. The PL spectrum consists of the asymmetric broad band with the main emission peak located at 580 nm and the wavelength ranging from 450 to 750 nm, which belongs to the allowed transition of 4f 6 5d 1 → 4f 7 . BASO:0.3Eu 2+ can also be excited by a light source with the wavelength ranging from 250 to 520 nm, corresponding to 4f 7 → 4f 6 5d 1 that allowed the transition of Eu 2+ .…”

“…Alkaline earth silicate and aluminate are favorable host materials. The development and research of rare-earth ion sensitized aluminate and silicate materials has been the principal part of long persistent luminescence materials in the recent years. , Aluminosilicate is also a good luminescent matrix with advantages such as stable chemical property, low synthesis temperature, abundant raw material, and low cost. Therefore, aluminosilicate has great value in research and application as a novel long persistent luminescence matrix.…”