Excitation induced efficient luminescent properties of nanocrystalline Tb3+/Sm3+:Ca2Gd8Si6O26 phosphors

DFT calculation, electric and luminescent property of titanate solid state electrolytes based red emitting phosphor A 2 La 2 Ti 3 O 10 :Eu 3+ (A = Na, K)

“…10c). The increasing intensity is owing to more plasma produced as the increasing accelerating voltage or filament current are contributed to the greater electron penetration depth by the recombination of more electron-hole (exciton) pairs, resulting in more Eu 3þ ions in the surface or the interior of particles being excited [32]. In addition, K 2 La 1.0 Eu 1.0 Ti 3 O 10 shows much higher filament saturation current than that of Na 2 La 1.0 Eu 1.0 Ti 3 O 10 .…”

Synthesis and luminescent properties of CaLa2ZnO5:Ln (Ln:Tm3+ or Er3+) phosphors

“…From the above, reasonable facts lead to a conclusion that new phosphors need to be apply to FEDs. Rare-earth (RE) ions doped garnets, oxides, silicates and some perovskites type phosphors are one of the promising solution and these phosphors have high chemical stability and suitable luminescence properties for FEDs [2,[17][18][19][20]. Among various trivalent rare-earth (RE 3 þ ) ions activated luminescent materials, thulium or erbium doped oxide phosphors have been attracted renewable attention in present days due to their blue and green emission properties, respectively, providing possible applications for the fabrication of FEDs.…”

White Light Emission from Sr2LiSiO4F:Sm3+,Tb3+ Phosphors Under Near‐UV Light Excitation

“…We found in these work that f – d transition ions were usually used as donors or acceptor, and much fewer researches were carried out for f – f transition ions, in which the luminescent properties are influenced slightly by the crystal field, because the 4 f electrons are well shielded from the surroundings. As we know that Tb 3+ ions can emit blue emission ( 5 D 3 → 7 F J ) and green emission ( 5 D 4 → 7 F J ), and Sm 3+ ions can emit orange emission ( 4 G 5/2 → 6 H 7/2 ), white light emission can be obtained when appropriate Tb 3+ and Sm 3+ ions are induced into the same host …”

“…6 H 7/2 ), white light emission can be obtained when appropriate Tb 3+ and Sm 3+ ions are induced into the same host. [13][14][15] Recently, rare earth-doped alkaline silicate fluoride phosphors, such as chlorosilicates and fluorosilicates, have attracted much attention because of their good thermal, chemical stability, excellent optical properties for WLEDs. Up till now, although some work has reported the Sr 2 Li-SiO 4 F host lattice-related phosphors [16][17][18][19][20][21] 3+ and Sm 3+ /Tb 3+ codoped samples, the raw materials were fired in CO ambiance.…”