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  • Title: Vapor-solid growth and characterization of aluminum nitride nanocones.
    Author: Liu C, Hu Z, Wu Q, Wang X, Chen Y, Sang H, Zhu J, Deng S, Xu N.
    Journal: J Am Chem Soc; 2005 Feb 02; 127(4):1318-22. PubMed ID: 15669873.
    Abstract:
    Aluminum nitride nanostructures are attractive for many promising applications in semiconductor nanotechnology. Herein we report on vapor-solid growth of quasi-aligned aluminum nitride nanocones on catalyst-coated wafers via the reactions between AlCl3 vapor and NH3 gas under moderate temperatures around 700 degrees C, and the growth mechanism is briefly discussed. The as-prepared wurtzite aluminum nitride nanocones grow preferentially along the c-axis with adjustable dimensions of the sharp tips in the range of 20-60 nm. The photoluminescence spectrum reveals a broad blue emission band with a fine photon structure while the field emission study shows a notable emission current with a moderate turn-on field as expected, suggesting their potential applications in light and electron emission nanodevices.
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