Description:

Zinc oxide (ZnO) crystal fibers have been prepared on a silicon (1 0 0) substrate via a simple thermal chemical reaction vapor transport deposition method in air with a mixture of ZnO and carbon powders as reactants.  There is no other metal catalyst or carrier gas in the process. The scanning electron microscope measurements showed that the ZnO fibers obtained had diameters ranging from 300 nm to 1.5 m and the maximal lengths up to 1 mm, resulting in an aspect ratio estimated as high as about 600.  This SEM image of the ZnO crystal fibers on silicon substrate is at a magnification of 300x.

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