UM
Color-Tunable and Highly Luminous N3--DopedBa2-xCaxSiO4-δN2/3δ:Eu2+ (0.0≤ x≤1.0) Phosphors for White NUV-LED
Kim D.1; Bae J.-S.2; Hong T.E.2; Hui K.N.3; Kim S.5; Kim C.H.4; Park J.-C.1
2016-07-13
Source PublicationACS Applied Materials and Interfaces
ISSN19448252 19448244
Volume8Issue:27Pages:17371-17381
AbstractIn the search for well-defined phosphor materials for white NUV-LEDs, the highly enhanced luminous efficacy by N doping as well as color tunability via Ca substitution has been successfully obtained in BaCaSiON:Eu (x = 0.0, 0.5, 0.8, 1.0) phosphors. With increasing Ca-substitution rate, the crystal structures of the phosphor materials are changed from the primitive orthorhombic structure to the hexagonal one, so that the CIE coordinates move from bluish-green (at Ca = 0.0), to blue (at Ca = 0.5), and finally to near white region (at Ca = 0.8 and 1.0) in these materials. In combination with the results from X-ray photoelectron spectroscopy (XPS) and infrared (IR) spectroscopy, the elemental distribution of the phosphor materials found from secondary-ion mass spectrometry (SIMS) directly indicates that the N ions are partially substituted for O ions into the crystal lattice of alkaline-earth orthosilicates and thus critically improves the color-tunable photoluminescence (PL) and electroluminescence (EL) efficiency of the phosphor materials for white NUV-LEDs. The newly found "the N doping and color-tunable effect" on large PL and EL enhancement may provide a platform in the discovery of new efficient phosphors for solid state lighting.
KeywordBa2SiO4:Eu2+ Ca substitution color-tunable highly luminous PL and EL N3--ion doping
DOI10.1021/acsami.6b02778
URLView the original
Language英語
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Cited Times [WOS]:19   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Silla University
2.Korea Basic Science Institute
3.Universidade de Macau
4.Korea Research Institute Chemical Technology
5.Ajou University
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Kim D.,Bae J.-S.,Hong T.E.,et al. Color-Tunable and Highly Luminous N3--DopedBa2-xCaxSiO4-δN2/3δ:Eu2+ (0.0≤ x≤1.0) Phosphors for White NUV-LED[J]. ACS Applied Materials and Interfaces,2016,8(27):17371-17381.
APA Kim D..,Bae J.-S..,Hong T.E..,Hui K.N..,Kim S..,...&Park J.-C..(2016).Color-Tunable and Highly Luminous N3--DopedBa2-xCaxSiO4-δN2/3δ:Eu2+ (0.0≤ x≤1.0) Phosphors for White NUV-LED.ACS Applied Materials and Interfaces,8(27),17371-17381.
MLA Kim D.,et al."Color-Tunable and Highly Luminous N3--DopedBa2-xCaxSiO4-δN2/3δ:Eu2+ (0.0≤ x≤1.0) Phosphors for White NUV-LED".ACS Applied Materials and Interfaces 8.27(2016):17371-17381.
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