Studies in sol-gel glasses with incorporation of Cu and Fe, using PAS, X-ray diffraction and EPR

dc.creatorYanez-Limon, JM
dc.creatorPerez-Robles, JF
dc.creatorGonzalez-Hernandez, J
dc.creatorVorobiev, YV
dc.creatorRomano, JA
dc.creatorGandra, FCG
dc.creatorDa Silva, EC
dc.date2000
dc.dateAUG
dc.date2014-12-02T16:28:17Z
dc.date2015-11-26T16:28:31Z
dc.date2014-12-02T16:28:17Z
dc.date2015-11-26T16:28:31Z
dc.date.accessioned2018-03-28T23:09:32Z
dc.date.available2018-03-28T23:09:32Z
dc.identifierJournal Of Sol-gel Science And Technology. Kluwer Academic Publ, v. 18, n. 3, n. 207, n. 217, 2000.
dc.identifier0928-0707
dc.identifierWOS:000165905100003
dc.identifier10.1023/A:1008779420619
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75420
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/75420
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75420
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269484
dc.descriptionSiO2 Glasses with incorporation of either Cu or Fe were prepared by the sol-gel process and annealed in air at temperatures within the range of 100 to 500 degreesC. The samples were characterized using Visible Photoacoustic Absorption Spectroscopy (PAS), X-ray powder diffraction and Electron Paramagnetic Resonance (EPR). Under the annealing both systems show significant changes in composition, producing an evolution in the optical absorption spectra. In both systems, the formation of the metal oxide particles is observed after annealing at or above 300 degreesC. The optical and EPR spectra are interpreted in terms of the coordination of the metal ions using the ligand field theory. It is observed that the color of the samples has strong change with both the type of metal incorporated and with the annealing temperature.
dc.description18
dc.description3
dc.description207
dc.description217
dc.languageen
dc.publisherKluwer Academic Publ
dc.publisherDordrecht
dc.publisherHolanda
dc.relationJournal Of Sol-gel Science And Technology
dc.relationJ. Sol-Gel Sci. Technol.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectsol-gel glasses
dc.subjectmetal doped glasses
dc.subjectcolored glasses
dc.subjectphotoacoustic spectroscopy
dc.subjectelectron paramagnetic resonance
dc.subjectElectron-paramagnetic-resonance
dc.subjectSpin-resonance
dc.subjectIons
dc.subjectIron(iii)
dc.subjectParticles
dc.subjectCopper
dc.titleStudies in sol-gel glasses with incorporation of Cu and Fe, using PAS, X-ray diffraction and EPR
dc.typeArtículos de revistas


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