Single-crystalline rocketlike tetrapodal CdS nanorods were synthesized via a one-step seed-epitaxial MOCVD approach by thermal decomposition of Cd(S2CNEt2)(2) powders. This bottom-up method uses silver particles to initiate and guide the preferential orientation of the axial nanorods, whereas the epitaxial growth of wurtzite-structured branches occurs on the cubic CdSe seeds. This controlled seed-epitaxial method has potential as a general means of forming complex branching structures and may also offer opportunities for applications as building blocks for optoelectronic devices.
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