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Rocquefelte X, Goubin F, Koo HJ, et al. Investigation of the origin of the empirical relationship between refractive index and density on the basis of first principles calculations for the refractive indices of various TiO2 phases. Inorg Chem. 2004;43(7):2246-51doi: 10.1021/ic035383r.
Rocquefelte, X., Goubin, F., Koo, H. J., Whangbo, M. H., & Jobic, S. (2004). Investigation of the origin of the empirical relationship between refractive index and density on the basis of first principles calculations for the refractive indices of various TiO2 phases. Inorganic chemistry, 43(7), 2246-51. https://doi.org/10.1021/ic035383r
Rocquefelte, Xavier, et al. "Investigation of the origin of the empirical relationship between refractive index and density on the basis of first principles calculations for the refractive indices of various TiO2 phases." Inorganic chemistry vol. 43,7 (2004): 2246-51. doi: https://doi.org/10.1021/ic035383r
Rocquefelte X, Goubin F, Koo HJ, Whangbo MH, Jobic S. Investigation of the origin of the empirical relationship between refractive index and density on the basis of first principles calculations for the refractive indices of various TiO2 phases. Inorg Chem. 2004 Apr 05;43(7):2246-51. doi: 10.1021/ic035383r. PMID: 15046498.
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Inorg Chem. 2004 Apr 05;43(7):2246-51. doi: 10.1021/ic035383r.

Investigation of the origin of the empirical relationship between refractive index and density on the basis of first principles calculations for the refractive indices of various TiO2 phases.

Inorganic chemistry

Xavier Rocquefelte, Fabrice Goubin, Hyun-Joo Koo, Myung-Hwan Whangbo, Stéphane Jobic

Affiliations

  1. Laboratoire de Chimie des Solides, Institut des Matériaux Jean Rouxel, 2 rue de la Houssinière, BP 32229, 44322 Nantes Cedex 03, France.

PMID: 15046498 DOI: 10.1021/ic035383r

Abstract

On the basis of first principles electronic structure calculations, we determined the dielectric functions, the refractive indices, and the extinction coefficients of the seven different phases of TiO(2) and then examined why the refractive index is related to the density by the empirical Glastone-Dale equation. The zero frequency limit of the refractive index, n(0), is found to be a good approximation for the refractive index n determined around 2 eV. Our study indicates that the major factor influencing n in a series of closely related systems is the structure compactness. This finding suggests a way of preparing new UV absorbers with low refractive index.

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