Rational design of Bi3+/Ln3+:GdVO4 (Ln = Eu, Sm, Dy, Ho) nanophosphor: Synthesis, characterization and color-tunable property

Luminescence Spectroscopy and Origin of Luminescence Centers in Bi-Doped Materials

“…However, the origin of these states was not discussed. In [3,26,29,36,39,40,42,43,[143][144][145], the Bi 3+ -related spectral bands of YVO 4 :Bi were ascribed to the electronic transitions between the ground and excited states of a Bi 3+ ion, while in [7,27,33,34,38,41,44,128,141,156,[249][250][251][252][253], to the charge transfer transitions between Bi and V ions. In the latter set of works, the lowest-energy absorption band was connected with the Bi 3+ (6s 2 ) → V 5+ (3d 0 ) transitions and the emission band, with the V 4+ (3d 1 ) → Bi 4+ (6s 1 ) transitions.…”

“…In the latter set of works, the lowest-energy absorption band was connected with the Bi 3+ (6s 2 ) → V 5+ (3d 0 ) transitions and the emission band, with the V 4+ (3d 1 ) → Bi 4+ (6s 1 ) transitions. Luminescence of LuVO 4 :Bi and GdVO 4 :Bi was much less studied and mainly at 295 K (see, e.g., [3,28,29,35,37,38,41,64,65,143,144]).…”

Designing stimuli-responsive and color-tunable indicators via the coexistence of dual emitting centers

“…25,26 Moreover, energy transfer from Bi 3+ to rare earth activators (such as Eu 3+ , Dy 3+ , Pr 3+ , Tb 3+ , and Sm 3+ ) may occur in certain single-phase hosts, which broadens its luminescence characteristics and potential applications. 25–35…”

A 2 μm Single-Longitudinal-Mode Ho:GdVO4 CW Laser

“…At present, the gain medium that can be used to produce high-performance 2 μm single-longitudinal-mode lasers is still scarce, which limits the application of the 2 μm single-longitudinal-mode laser. Ho:GdVO 4 crystals have excellent mechanical and chemical properties [6,7]. The laser based on the Ho:GdVO 4 crystal can produce the high-performance 2 μm single-longitudinal-mode laser.…”