Optical spectroscopy of Mn2+ ions in CdCl2 single crystals

Preparation and properties of CdSiO3:Mn2+, Dy3+ phosphor

“…The emission spectra were scanned from 400 to 700 nm while excited at 286 nm. In the emission spectra, a broad band centered at about 587 nm which could be seen in all these phosphors, could be attributed to the 4 [21]. The emission intensity of Mn 2+ decreased for samples with higher concentration of Dy 3+ , attributing to the quenching effect of Dy 3+ on Mn 2+ .…”

Sol–gel synthesis and luminescence properties of CdSiO3: Mn2+, Eu3+ phosphor

“…5, respectively. In the emission spectra, a broad band centered at about 587 nm which could be seen in all phosphors, could be attributed to the 4 T 1g (G) → 6 A 1g (S) transition of Mn 2+ ions occupying the Cd 2+ sites in the lattice [25]. The two sharp group peaks located at 587 and 610 nm which overlapped on the ∼587 nm broad band, belonged to the 5 D 0 → 7 F 1 and 5 D 0 → 7 F 2 transitions of Eu 3+ ion [26][27][28].…”

Luminescence properties of CdSiO3: Mn2+, RE3+ (RE=Sm, Dy, Eu) phosphors

“…2, respectively. In the emission spectra, a broad band centered at about 587 nm which could be seen in all these four phosphors, could be attributed to the 4 T 1g (G) → 6 A 1g (S) transition of Mn 2+ ions occupying the Cd 2+ sites in the lattice [14]. For CdSiO 3 : Mn 2+ , Sm 3+ , the peak (600 nm) resulting from transitions of Sm 3+ , 4 G 5/2 → 6 H 7/2 [12], overlapped on the ∼587 nm broad band.…”