Effects of argon sintering atmosphere on luminescence characteristics of Ca6BaP4O17:Sm3+ phosphors

Structure–Optical Behavior Correlation, Optimized Photoluminescence, and DFT Calculation of La7O6(BO3)(PO4)2:Sm3+ Micropowder for Solid State Lighting

“…So far, several examples testify that the Sm 3+ ion with intrinsic 4f–4f transitions, as one of the rare-earth elements, is a suitable activator for red phosphors. − The crystalline field-dependent photoluminescence of Sm 3+ presents orange, orange-red, or red light emission. For instance, the Ca 6 BaP 4 O 17 :Sm 3+ phosphor reported recently exhibited orange-red emission with high color purity under 405 nm ( 6 H 5/2 → 4 F 7/2 transitions of Sm 3+ ) excitation . For the LiCa 3 MgV 3 O 12 :Sm 3+ phosphor, both the characteristic emitting (red) of doping trivalent samarium and the self-luminescence (bluish-green) of LiCa 3 MgV 3 O 12 host contribute to white light emission with high efficiency .…”

“…For instance, the Ca 6 BaP 4 O 17 :Sm 3+ phosphor reported recently exhibited orange-red emission with high color purity under 405 nm ( 6 H 5/2 → 4 F 7/2 transitions of Sm 3+ ) excitation. 19 For the LiCa 3 MgV 3 O 12 :Sm 3+ phosphor, both the characteristic emitting (red) of doping trivalent samarium and the selfluminescence (bluish-green) of LiCa 3 MgV 3 O 12 host contribute to white light emission with high efficiency. 20 On the other hand, the radius value and chemical valence state of Sm 3+ ion are chemically similar to those of La 3+ in the LBPO host because of the nature of lanthanides, indicating the feasibility of the substitution of Sm 3+ for La 3+ .…”