Microstructure of precipitated Au nanoclusters in TiO 2

C. M. Wang, Y. Zhang, V. Shutthanandan, S. Thevuthasan, G. Duscher

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    Abstract

    Gold (Au) nanoclusters embedded in TiO 2 single crystal were prepared by 2 MeV ion implantation and subsequent annealing at 1275 K. Scanning Transmission electron microscopy-high angle annular dark-field (STEM-HAADF) image revealed that Au atoms were in substitutional Ti atomic column in the TiO 2 lattice prior to the nucleation of the Au lattice. The embedded Au clusters were faceted along Au{112} and Au{111} or Au{220} and Au{002} planes and possessed (111) twins. The precipitated Au nanoclusters were found to exhibit unique orientation relationships with respect to the TiO 2 matrix. These orientation relationships were shown to be the preferred orientation relationships between Au and TiO 2.

    Original languageEnglish
    Pages (from-to)8185-8193
    Number of pages9
    JournalJournal of Applied Physics
    Volume95
    Issue number12
    DOIs
    Publication statusPublished - 15 Jun 2004

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    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Wang, C. M., Zhang, Y., Shutthanandan, V., Thevuthasan, S., & Duscher, G. (2004). Microstructure of precipitated Au nanoclusters in TiO 2 Journal of Applied Physics, 95(12), 8185-8193. https://doi.org/10.1063/1.1748859