Broad combined orange-red emissions from Eu2+- and Eu3+-doped low-silica calcium aluminosilicate glass
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
07/11/2013
07/11/2013
2012
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| Resumo |
In this paper, a broad combined orange-red emission from Eu2+- and Eu3+-doped low-silica calcium aluminosilicate (LSCAS) glass is reported. Spectroscopic results demonstrate that it is possible to tune the emission wavelength by changing the excitation wavelength in the UV-Vis region. The color coordinates for the emission spectra were calculated, and using the Commission Internationale de l'Eclairage 1931 and 1976 chromatic diagrams, it is possible to note that they are dependent on the excitation wavelength. In addition, the (u', v') color coordinates for the investigated LSCAS samples are close to the Planckian spectrum in the cold region between 2000 and 2600K. Our results show that the Eu:LSCAS system can be used in a white light phosphor when mixed in aggregate with phosphors using green-yellow luminescent ions. (c) 2012 Optical Society of America CAPES/COFECUB Brazil/France cooperation [565/07] CAPES/COFECUB Brazil/France cooperation Fundacao Araucaria Fundacao Araucaria FUNDECT FUNDECT CNPq CNPq FINEP FINEP CNRS-UCBLyon1 CNRSUCBLyon1 |
| Identificador |
OPTICS EXPRESS, WASHINGTON, v. 20, n. 12, supl., Part 1, pp. 12658-12665, 38139, 2012 1094-4087 |
| Idioma(s) |
eng |
| Publicador |
OPTICAL SOC AMER WASHINGTON |
| Relação |
OPTICS EXPRESS |
| Direitos |
closedAccess Copyright OPTICAL SOC AMER |
| Palavras-Chave | #LIGHT-EMITTING-DIODES #HOST LATTICES #LUMINESCENCE #PHOSPHORS #OPTICS |
| Tipo |
article original article publishedVersion |
