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    Lead oxide nanobelts and phase transformation induced by electron beam irradiation

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    2002-26-02_APL_2.pdf (398.4Kb)
    Date
    2002-01-14
    Author
    Pan, Zhengwei
    Dai, Z. R.
    Wang, Z. L. (Zhong Lin)
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    Abstract
    β -PbO₂ nanobelts, with a rectangular cross section, a typical length of 10–200 µm, a width of 50–300 nm, and a width-to-thickness ratio of 5–10, have been successfully synthesized by simple elevated evaporation of commercial PbO powders at high temperature. The PbO₂ nanobelts are enclosed by top surfaces ±(201) and side surfaces ±(10) and their growth direction is [010]. Each PbO₂ nanobelt is found to have a large polyhedral Pb tip at one of its ends, suggesting the growth is dominated by a vapor–liquid–solid mechanism. Electron beam irradiation of the PbO₂ nanobelts results in the phase transformation from PbO₂ to PbO and finally to Pb.
    URI
    http://hdl.handle.net/1853/27102
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