INFRARED AND RAMAN SPECTRA OF CATHODOCHROMIC SODALITE
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Date
1977
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Cathodochromic materials charge color when excited by an electron beam. Two modes of coloration have been observed in these materials; the optical mode is erasable by bleaching with light while the thermal mode is erasable by heating. We have obtained the infrared spectrum from 150 to 4000 $cm^{-1}$ and the Raman spectrum of cathodochromic sodalite ($Na_{6}Al_{6}Si_{6}O_{24}\cdot 2NaBr)$ in an effort to explain the coloration modes. Spectral characteristics of colored and uncolored sodalite will be presented and interpreted. These spectra indicate a coloration model which will be compared to previously proposed $models.^{1,2}$
Description
$^{1}$B. W. Faughnan, I. Gorog, P. M. Heyman, and I. Shidousky, Proc. of I.E.E.E. 61, 921 (1973). $^{2}$ J. S. Brinen and L. A. Wilson, J. Chem. Phys. 56, 6256 (1972).
Author Institution: Department of Electrical Engineering, University of Kentucky
Author Institution: Department of Electrical Engineering, University of Kentucky