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Characterization and estimation of ito (indium-tin-oxide) by Mössbauer spectrometry

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Abstract

ITO films and powders, prepared by several methods, were characterized by conversion electron and transmission Mössbauer spectrometry (CEMS and TMS). The slight change of FWHM of Sn(IV), observed in ITO films, was attributed to the presence of the acid-insoluble segregated SnO2 and the acid-soluble Sn(IV) that is incorporated in the In2O3 lattice. A good correlation was found between the area intensities of a doublet and a singlet and the ratios of acid-soluble Sn(IV) to acid-insoluble Sn(IV). The peaks of acid-soluble Sn(IV) in ITO were deconvoluted to two doublets corresponding to different sites. The results suggested that Sn(IV) atoms were preferentially substituted to the centers of trigonally distorted octahedra (site b) rather than to the centers of more distorted octahedra (site d).

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Authors and Affiliations

  1. Faculty of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan

    K. Nomura & Y. Ujihira

  2. Asahi Glass Co,Ltd., Hazawa-cho, Kanagawa-ku, Yokohama, Kanagawa, Japan

    S. Tanaka & K. Matsumoto

Authors
  1. K. Nomura
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  2. Y. Ujihira
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  3. S. Tanaka
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  4. K. Matsumoto
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Nomura, K., Ujihira, Y., Tanaka, S. et al. Characterization and estimation of ito (indium-tin-oxide) by Mössbauer spectrometry. Hyperfine Interact 42, 1207–1210 (1988). https://doi.org/10.1007/BF02395608

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  • DOI: https://doi.org/10.1007/BF02395608

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