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Effect of non-stoichiometry on optical, radiative, and thermal characteristics of ceria undergoing reduction

Wheeler, Vincent; Zapata, Jose; Kreider, Peter; Lipinski, Wojciech


The complex refractive index of ceria has been determined at ambient temperature using variable angle spectroscopic ellipsometry for two chemical states—fully oxidized and partially reduced. The ellipsometric model is corroborated with complementary measurements of thickness, surface roughness, and chemical composition. Partially reduced ceria is shown to have a larger absorption index over a broad spectral range than fully oxidized ceria, including the visible and near IR regions. We use a...[Show more]

CollectionsANU Research Publications
Date published: 2018-03-19
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.26.00A360
Access Rights: Open Access


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