期刊
CHEMICAL PHYSICS LETTERS
卷 442, 期 4-6, 页码 334-338出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2007.05.076
关键词
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Infrared absorption, temperature-dependent electrical resistance and magneto-resistance measurements of Bi nanowires (diameter <200 nm) prepared using the alumina-template method confirmed the existence of a semimetal-semiconductor phase transition. In this Letter, we report the synthesis of similar to 10 nm diameter Bi nanorods using a pulsed laser vaporization method. The high-resolution transmission electron microscopy images of our Bi nanorods show a crystalline Bi core oriented along < 012 > direction, and coated with a thin amorphous Bi2O3 layer. The infrared absorption and the surface plasmon peaks in our Bi nanorods are blue-shifted in energy when compared to the corresponding spectra in bulk Bi. (c) 2007 Elsevier B.V. All rights reserved.
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