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- W2476417420 abstract "SrAl 2 O 4 :Eu 2+ ,Dy 3+ long-lasting phosphors were incorporated AlN successfully by a conventional solid-state reaction in the reductive atmosphere. When a certain amount of AlN was doped, the specimen SrAl 2 O 4-3x N 2x : Eu 2+ , 0.01Dy 3+ (x = 0.0-0.2) maintained the phase purity. Under the excitation at 398nm, an intense broadband emission centered at 514 nm, originating from the 4f 6 5d 1 →4f 7 transition of Eu 2+ , was observed. It is noteworthy that partial nitridation leads to an enhancement in the emission intensity up to 240%. The study of thermal stability shows that the intensity of SrAl 2 O 3.55 N 0.3 :Eu 2+ ,0.01Dy 3+ phosphor still remains 72% at 150 °C comparing with the initial, while only 62% for the un-doped phosphor. Taking enhanced photoluminescence (PL) property and good thermal stability into account, SrAl 2 O 4-3x N 2x :Eu 2+ , 0.01Dy 3+ is a promising candidate for the phosphors used in alternating current (AC) LEDs." @default.
- W2476417420 created "2016-08-23" @default.
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- W2476417420 date "2016-07-01" @default.
- W2476417420 modified "2023-09-27" @default.
- W2476417420 title "Improvement of SrAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup>, Dy<sup>3+ </sup>Phosphor via AlN Incorporation" @default.
- W2476417420 doi "https://doi.org/10.4028/www.scientific.net/kem.697.71" @default.
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