The optical properties of chromium-doped sodium silicate glass synthesized under oxidizing conditions have been investigated. The method of preparation provides a large concentration of Cr6+ ions, but absorption and emission spectra showed that a small amount of Cr3+ (and Cr5+) ions are always present. The Dq-, B- and C-parameters of the crystal-field theory for the Cr3+ ion were obtained, confirming the glassy nature of the sample. Cr3+ luminescence was observed in the near-infrared region, even at room temperature, confirming the low value of the crystal-field Dq. Moreover, the high ultraviolet transparency of this matrix allows observation of a well resolved absorption spectrum of the Cr6+ ion.

Casalboni, M., Ciafardone, V., Giuli, G., Izzi, B., Paris, E., & Prosposito, P. (1996). An optical study of silicate glass containing Cr3+ and Cr6+ ions. JOURNAL OF PHYSICS. CONDENSED MATTER, 8(46), 9059-9069 [10.1088/0953-8984/8/46/011].

An optical study of silicate glass containing Cr3+ and Cr6+ ions

CASALBONI, MAURO;PROSPOSITO, PAOLO
1996

Abstract

The optical properties of chromium-doped sodium silicate glass synthesized under oxidizing conditions have been investigated. The method of preparation provides a large concentration of Cr6+ ions, but absorption and emission spectra showed that a small amount of Cr3+ (and Cr5+) ions are always present. The Dq-, B- and C-parameters of the crystal-field theory for the Cr3+ ion were obtained, confirming the glassy nature of the sample. Cr3+ luminescence was observed in the near-infrared region, even at room temperature, confirming the low value of the crystal-field Dq. Moreover, the high ultraviolet transparency of this matrix allows observation of a well resolved absorption spectrum of the Cr6+ ion.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/03 - Fisica della Materia
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
Settore ING-IND/22 - Scienza e Tecnologia dei Materiali
English
Condensed Matter Physics; Electronic, Optical and Magnetic Materials
Casalboni, M., Ciafardone, V., Giuli, G., Izzi, B., Paris, E., & Prosposito, P. (1996). An optical study of silicate glass containing Cr3+ and Cr6+ ions. JOURNAL OF PHYSICS. CONDENSED MATTER, 8(46), 9059-9069 [10.1088/0953-8984/8/46/011].
Casalboni, M; Ciafardone, V; Giuli, G; Izzi, B; Paris, E; Prosposito, P
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/131243
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