A novel reddish-orange fluorapatite phosphor, La6-Ba4(SiO4)6F2: xSm3+ - Structure, luminescence and energy transfer properties

Structure and luminescence properties of a novel broadband green-emitting oxyapatite-type phosphor

“…Fig. 5 describes the decay curves of the phosphor, which can be tted by a double-exponential equation: 39,40…”

Preparation, crystal structure and luminescence properties of a novel single-phase red emitting phosphor CaSr2(PO4)2:Sm3+,Li+

“…7 shows the dependence of emission intensity on the Sm 3+ doping concentration at 565, 601, 647, and 707 nm corresponding to the electronic transitions of 4 G 5/2 / 6 H 5/2 , 4 G 5/2 / 6 H 7/2 , 4 G 5/2 / 6 H 9/2 , and 4 G 5/2 / 6 H 11/2 , respectively. 15 In addition, the 4 G 5/2 / 6 H 7/2 transition (at 601 nm) is the strongest one. There are no signicant variations in the emission band positions or shape in any phosphor.…”

“…These are ascribed to the intrinsic 4f 5 -4f 5 transitions of Sm 3+ ions. 15 The observed peaks around 305, 318, 333, 345, 375, 391, 403, 416, 440, 466 and 477 nm, correspond to the transitions from the ground level 6 H 5/2 to the excited levels 4 4 H 13/2 , and 4 I 11/2 of Sm 3+ , respectively. [16][17][18] The most intense band in the PLE spectra is located at 403 nm, in the near-UV region.…”

Tunable lanthanide/transition metal ion‐doped novel phosphors for possible application in w‐LEDs: a review

“…Excitation of the phosphors at 404 nm resulted in reddish‐orange light emission around 603 nm. The high intensity of 72% for the LBSF:0.12Sm 3+ phosphor at 150°C suggested that the phosphor had a high thermal stability . Oxyapatite structures are excellent host lattices for luminescent materials and therefore are efficient phosphors for the light industry.…”