期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 127, 期 4, 页码 1318-1322出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja045682v
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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 re actions between AlCl3 vapor and NH3 gas under moderate temperatures around 700 degreesC, 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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