Ultraviolet long afterglow emission in Bi<SUP>3</SUP><SUP>+</SUP> doped CdSiO<SUB>3</SUB> phosphors

Recent advances and prospects of persistent luminescent materials as inner secondary self-luminous light source for photocatalytic applications

“…Bandlike persistent luminescence can also be achieved in MPLs doped with ns 2 cations like Bi 3+ [141,149,234,[257][258][259][260][261][262][263][264][265][266][267][268][269] or Pb 2+ ion [270][271][272][273] (Table 4). Unlike the Mn 4+ and Cr 3+ ions yet similar to the Eu 2+ , Ce 3+ , and Mn 2+ ions, single Bi 3+ ion, depending on different crystal hosts, can exhibit the fluorescence broadly spanning from UV, blue, yellow and to reddish/red [45,[274][275][276][277][278][279][280][281][282][283][284][285].…”

Recent advances in Pr3+-activated persistent phosphors

“…Studies on phosphors capable of PersL at the short-wavelength (high-energy) end of the spectrum, UV (200-400 nm) spectral range, especially UVC (200-280 nm, ''solar-blind''), have remained silent until very recently. To our best knowledge, only a few persistent phosphors have been reported emitting in the UV range, including UVA (320-400 nm) PersL activated by Bi 3+ , [114][115][116][117][118][119][120][121][122] Pb 2+ , 9 or Tb 3+ , 123 UVB (280-320 nm) PersL activated by Pr 3+ 124,125 or Gd 3+ 126-129 and UVC PersL activated by Pr 3+ 40,41,129-131 or Bi 3+ 129,132 and dual-band UVC and UVB PersL activated by Pr 3+ . 53,133 Due to the high 4f5d energy state (the first case in Fig.…”

Enabling narrowband cyan photoluminescence and long-lasting ultraviolet-A persistent luminescence in Bi3+ single-doped Sr3Sc2Ge3O12 phosphors by selective site occupation

“…Among them, Y 3 (Ga,Al) 5 O 12 :Bi 3+ phosphors were found to emit intense ultraviolet-B (UVB; 280-320 nm) afterglow with the peak maximum shorter than 320 nm. [42][43][44] Meanwhile, Bi 3+ doped silicates and germanates (e.g., CdSiO 3 :Bi 3+ , 36 Sr 3 Y 2 Ge 3 O 12 :Bi 3+ 34 or ALnGeO 4 :Bi 3+ 37-41 ) can emit ultraviolet-A (UVA; 320-400 nm) persistent luminescence with the emission wavelength longer than 350 nm, which have also aroused significant interest in recent years considering their potential applications in energysaving catalysis and photomedicine. [45][46][47] However, to date, Bi 3+doped UV persistent phosphors with emission wavelengths over 320-350 nm have been relatively unexplored, even though tunable UV emission of Bi 3+ can be finely controlled by adjusting the crystal-field environment of the host materials.…”