title: Tunable color temperature of Ce3+/Eu2+, 3+ co-doped low silica aluminosilicate glasses for white lighting.
abstract: In this paper we report results of tunable lighting in Ce(3+)/Eu(2+,3+) doped low silica calcium aluminosilicate glass. Optical spectroscopy experiments indicate that there is a red color compensation from Eu(2+) and Eu(3+) to the green emission from Ce(3+), resulting in a broad and tunable emission spectra depending on the excitation wavelength. This result analysed in the CIE 1976 color diagram shows a close distance from the Plank emission and a correlated color temperature, varying from 5200 to 3500K. This indicates that our system can be easily excited by GaN based blue LEDs, being an interesting phosphor for white lighting devices.
authors.affiliation: Grupo de Espectroscopia Óptica e Fototérmica, Universidade Estadual de Mato Grosso do Sul-UEMS, MS Dourados, C. P. 351 CEP 79804-970, Brazil. alexcprocha@gmail.com
authors.forename: A C P
authors.initials: AC
authors.lastname: Rocha
authors.forename: L H C
authors.initials: LH
authors.lastname: Andrade
authors.forename: S M
authors.initials: SM
authors.lastname: Lima
authors.forename: A M
authors.initials: AM
authors.lastname: Farias
authors.forename: A C
authors.initials: AC
authors.lastname: Bento
authors.forename: M L
authors.initials: ML
authors.lastname: Baesso
authors.forename: Y
authors.initials: Y
authors.lastname: Guyot
authors.forename: G
authors.initials: G
authors.lastname: Boulon
mesh_terms: D002586:Cesium / Q000737:chemistry*; D003116:Color; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005898:Glass / Q000737:chemistry*; D008029:Lighting / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*
chemical_list: D002586:Cesium