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A near-ultraviolet (NUV) converting green-yellow Ca2AlMg0.5Si1.5O7:Eu2+ phosphor for white light-emitting-diodes (w-LEDs).
- Source :
-
Chemical Engineering Journal . Oct2014, Vol. 254, p486-490. 5p. - Publication Year :
- 2014
-
Abstract
- Eu2+ doped aluminosilicate phosphors (Ca2AlMg0.5Si1.5O7:Eu2+ (CAMS:Eu2+)) for white near-UV w-LEDs have been synthesized by solid-state reaction at 1250 °C. The phase and crystal structure of CAMS have been analyzed by using XRD. The material with a relatively low Eu2+ concentration displayed a peak in excitation spectrum at 372 nm and a tunable emission spectrum. The colorimetric coordinate of sample with optimum Eu2+ concentration locates in green-yellow region with coordinate value of (0.2639, 0.6212). When the phosphor was pumped by UV light (λ ≈ 372 nm), we obtained bright green-yellow light, suggesting this material has a potential application as a NUV converting green-yellow phosphor for the NUV w-LEDs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13858947
- Volume :
- 254
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 97283300
- Full Text :
- https://doi.org/10.1016/j.cej.2014.05.123