Morphology and Growth Mechanism of Comb‐like and Leaf‐like ZnO Nanostructures

Comb‐like ZnO nanostructures and leaf‐like nanostructures with a high crystalline quality are fabricated by chemical vapor deposition without any metallic catalyst. One leaf‐like nanostructure is formed by six comb‐like nanostructures, which are gathered at the bottom edge of each comb‐like nanostructure. Every comb‐like nanostructure consists of a wide, long microbelt. The growth of the comb‐like ZnO nanostructure includes nucleation, growth of the microbelt, and growth of the nanobelt array.