2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Controllable synthesis of patterned ZnO nanostructures based on the templation of plant cell walls

C.L. Cheng, C.C. Chen, H.Y. Lin, T.T. Chen and Y.F. Chen
National Taiwan University, TW

Keywords:
ZnO, nanostructures

Abstract:
A novel approach based on vapor-phase transport technique using Au-coated plant cell walls with metallic ions as the catalyst has been developed to synthesize ZnO nanostructures. It is shown that plant cell walls can serve as a well defined template to grow patterned nanostructures. Quite interestingly, it is found that the shape of the nanostructures can be controlled by the metallic ions used. For instance, with Au/Ni+ catalyst, a homogeneous distribution of nanodendrites is obtained. On the other hand, with Au/Fe+ catalyst, nanotowers are observed. Morever, the Raman scattering spectra show excellent crystalline quality of the grown nanostructures. Our approach provides a low cost method, which is capable of the mass production for growing patterned nanostructures.

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