Spectroscopic characterization of SnO2 gels - Code: CP11
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Excitation and dynamic emission spectra of Eu3+ ions were simultaneously used with FTIR and Raman spectroscopy to study the structural evolution during SnO2 sol → gel → xerogel conversion. Results make evident an increase of the surroundings symmetry for the Eu3+ ions dissolved in SnO2 matrix and a decrease of the amount of hydroxo groups (Sn-OH) during drying. These phenomena were associated to the pursuit of the condensation reaction after gelation. © 1994 Kluwer Academic Publishers.
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gel drying, optical spectroscopy, tin oxide hydrogel
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Inglês
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Journal of Sol-Gel Science and Technology, v. 2, n. 1-3, p. 263-267, 1994.
