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Anomalies in Light Absorption Coefficient of Silica Nanoparticles Generated within Flame

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Abstract

The paper is devoted to theoretical study of light absorption by silica nanoparticles generated in flame. The formulation of the theory of light absorption in the case of strong Coulomb disorder of heavily doped semiconductors is applied to the description of absorption anomalies recently found experimentally for particles with the radius of about 40 nm. It has been shown that theoretically calculated absorption reproduces all the peculiarities revealed experimentally but only at unusually high concentration of defects. The conclusion is made that during the flame synthesis the nanoparticles are formed in a metastable state.

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Authors and Affiliations

  1. Physics Institute, Odessa National University, Pasteur'a 27, Odessa, 65026, Ukraine

    P.V. Pikhitsa

  2. Physics Department, Odessa National University, Dvoryanskaya 2, Odessa, 65026, Ukraine

    I.S. Altman

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  1. P.V. Pikhitsa
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  2. I.S. Altman
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Pikhitsa, P., Altman, I. Anomalies in Light Absorption Coefficient of Silica Nanoparticles Generated within Flame. Journal of Nanoparticle Research 3, 303–308 (2001). https://doi.org/10.1023/A:1017991902292

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