Abstract
A simple hydrothermal route has been developed for the fabricating ZnO hierarchical micro/nanostructure with excellent reproducibility. SEM and TEM analysis show that the hierarchical rod is a single-crystal, suggesting that many single-crystal micro/nanorods are assembled into ZnO hierarchical micro/nanostructures. The morphologies of the hierarchical rods can be conveniently tailored by changing the reaction parameters. And we also found citric acid plays a crucial role in the formation process of ZnO micro/nanostructures. Room-temperature photoluminescence spectra reveals that the ZnO hierarchical micro/nanostructures have a strong emission peak at 440 nm and several weak emission peaks at 420, 471 and 541 nm, respectively.
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Li, W., Sun, Y. & Xu, J. Controllable Hydrothermal Synthesis and Properties of ZnO Hierarchical Micro/Nanostructures. Nano-Micro Lett. 4, 98–102 (2012). https://doi.org/10.1007/BF03353699
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DOI: https://doi.org/10.1007/BF03353699