Growth of crystalline boron nanowires by pulsed laser ablation
نویسندگان
چکیده
Crystalline boron nanowires were grown on Pt coated sapphire substrates using pulsed laser ablation at different temperatures under a pressure of 50 Pa. High-resolution TEM and transmission electron diffraction (TED) analyses were performed to determine the crystal structure of these nanowires. These nanowires had diameters ~100 nm and lengths in the micrometer range. Systematic analyses showed that a vapour-liquid-solid (VLS) mechanism plays an important role in the growth of boron nanowires. The role of the Pt catalyst in the synthesis of boron nanowires is also discussed.
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تاریخ انتشار 2011