As one of the most versatile semiconductors, zinc oxide (ZnO) with one-dimensional (1-D) nanostructures has been significantly developed for the application of ultraviolet (UV) lasers, photochemical sensors, photocatalysts, and so on. Such 1-D nanowires could be easily achieved due to the anisotropic growth rate along the [0001] direction. However, such typical growth habit leads to decrease the surface area of the (0001) plane, which plays a central role in not only UV lasing action but also photocatalytic reaction. This fact lead us to develop ZnO crystal with enhanced polar surface area through crystal growth control. The purpose of this review is to provide readers a simple route to plate-type ZnO crystal with highly enhanced polar surfaces and their applications for UV-laser, photocatalyst, and antibacterial agents. In addition, we will highlight the recent study on pilot-scale synthesis of plate-type ZnO crystal for industrial applications.
1. Introduction
2. Synthesis of ZnO nanorod array by VLS method and its drawbacks
3. Soft-solution route to ZnO nanowall array and its UV-lasing properties
4. Photocatalytic properties of plate-type ZnO nanostructure
5. Antibacterial mechanism of ZnO nanostructures under dark conditions
6. Pilot-scale synthesis of plate-type ZnO
7. Conclusion
8. Acknowledgment
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