2011
DOI: 10.1016/j.matlet.2011.07.060
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Photoluminescence properties of green-emitting Eu2+-activated Ba3Si6O12N2 oxynitride phosphor for white LED applications

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Cited by 37 publications
(16 citation statements)
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“…In particular, RE-ions-activated (RE = Ce 3+ , Eu 2+ , Yb 3+ , etc.) alkaline-earth silicon–oxynitride phosphors have been investigated in recent years as potential candidate materials to improve the low luminescent efficiency and low color rendering index for white LED applications. , The N 3– ions partially substituted for O 2– ions in the alkaline-earth silicate lattice could alter the electronic structure of Eu 2+ due to the difference of the electronegativity, the formal charge, the crystal field splitting, and the nephelauxetic effect in two ions, which results in the improvement of the luminescence properties of the alkaline-earth silicon–oxynitride phosphors. Herein, we report the highly enhanced photoluminescence (PL) and electroluminescence (EL) of the N 3– -ion-doped Ba 2‑ x Ca x SiO 4−δ N 2/3δ :Eu 2+ (BSON:Eu 2+ and BCSON:Eu 2+ ) phosphors comparing with Ba 2‑ x Ca x SiO 4 :Eu 2+ (BSO:Eu 2+ and BCSO:Eu 2+ ) phosphors ( x = 0.0, 0.5, 0.8, 1.0).…”
Section: Introductionmentioning
confidence: 99%
“…In particular, RE-ions-activated (RE = Ce 3+ , Eu 2+ , Yb 3+ , etc.) alkaline-earth silicon–oxynitride phosphors have been investigated in recent years as potential candidate materials to improve the low luminescent efficiency and low color rendering index for white LED applications. , The N 3– ions partially substituted for O 2– ions in the alkaline-earth silicate lattice could alter the electronic structure of Eu 2+ due to the difference of the electronegativity, the formal charge, the crystal field splitting, and the nephelauxetic effect in two ions, which results in the improvement of the luminescence properties of the alkaline-earth silicon–oxynitride phosphors. Herein, we report the highly enhanced photoluminescence (PL) and electroluminescence (EL) of the N 3– -ion-doped Ba 2‑ x Ca x SiO 4−δ N 2/3δ :Eu 2+ (BSON:Eu 2+ and BCSON:Eu 2+ ) phosphors comparing with Ba 2‑ x Ca x SiO 4 :Eu 2+ (BSO:Eu 2+ and BCSO:Eu 2+ ) phosphors ( x = 0.0, 0.5, 0.8, 1.0).…”
Section: Introductionmentioning
confidence: 99%
“…A striking example is given by two chemically close oxynitride materials: Ba The two hosts materials have very similar electronic and structural properties [4] but when doped with Eu, they exhibit different luminescence properties and temperature behavior. The green phosphor Ba 3 Si 6 O 12 N 2 :Eu [5][6][7][8][9][10][11][12][13][14][15] has an intensity that stays almost constant with temperature up to its working temperature, while Ba 3 Si 6 O 9 N 4 :Eu is a bluish-green phosphor [6,[16][17][18][19] that exhibits an unfavorable decrease of the luminescence intensity with temperature.…”
mentioning
confidence: 99%
“…30 Furthermore, ammonium chloride was used as a reducing agent and nitrogen source for the reduction nitridation from MoO 2 to MoN at 2 GPa, 31 as a reaction inhibitor for metathesis reactions under high pressure, 21,32 as a mineralizer for ammonothermal reactions, 33 and as a flux for solid-state reactions of nitrides and oxynitrides. 34 Thus, ammonium chloride is a very powerful compound for nitride synthesis. Additionally, ammonium chloride is easy to handle because it is a stable solid at ambient temperature and pressure, and the residual ammonium chloride can be removed by washing the sample with water due to its high solubility.…”
Section: Introductionmentioning
confidence: 99%
“…Boron nitride (BN) and 3d transition-metal nitrides (TiN, CrN, and VN) have been synthesized by a solvothermal method using ammonium chloride as both the solvent and the nitrogen source. , P 3 N 5 was produced by the reaction of (PNCl 2 ) 3 and ammonium chloride in an enclosed quartz tube . Furthermore, ammonium chloride was used as a reducing agent and nitrogen source for the reduction nitridation from MoO 2 to MoN at 2 GPa, as a reaction inhibitor for metathesis reactions under high pressure, , as a mineralizer for ammonothermal reactions, and as a flux for solid-state reactions of nitrides and oxynitrides . Thus, ammonium chloride is a very powerful compound for nitride synthesis.…”
Section: Introductionmentioning
confidence: 99%