Self-Assembled Nanowire−Nanoribbon Junction Arrays of ZnO
The Journal of Physical Chemistry B2002Vol. 106(49), pp. 12653–12658
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Abstract
We report the synthesis and characterization of nanowire−nanoribbon junction arrays of ZnO, which were grown by thermal evaporation of the mixture of ZnO and SnO2 powders at 1300 °C through a vapor−liquid−solid process. The Sn particles produced by the reduction of SnO2 act as the catalyst; the structure is formed due to a fast growth of ZnO nanowires along [0001] and the subsequent "epitaxial" radial growth of the ZnO nanoribbons along the six 〈011̄0〉 directions around the nanowire. The "liana" shape nanostructure could be a candidate for fabricating ultrahigh sensitive sensors.