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|Title:||Self assembled ZnO hollow spheres and hexagonal stacking disks by metal-organic chemical-vapour deposition|
|Source:||Tan, S.T., Sun, X.W., Zhang, X.H., Chua, S.J., Chow, S.Y., Yong, A.M., Lo, G.Q., Kwong, D.L. (2007-10). Self assembled ZnO hollow spheres and hexagonal stacking disks by metal-organic chemical-vapour deposition. International Journal of Nanotechnology 4 (6) : 691-701. ScholarBank@NUS Repository. https://doi.org/10.1504/IJNT.2007.015464|
|Abstract:||Self-assembled ZnO hollow spheres and hexagonal stacking disks were synthesised by metal-organic chemical-vapour deposition. The growth process was investigated as a function of time and the sphere and disk structures were obtained in a narrow window of a near-zero oxygen partial pressure. The largest hollow sphere has a diameter up to 20 μm with a shell thickness of around 200 nm formed by nanocrystals or nanodisks. The hexagonal stacking disks were found to be covered with a few nanometres thick of metallic Zn observed by high-resolution transmission electron microscopy. The accumulation and dissociation of diethylzine through beta hydride elimination process in the near-zero oxygen partial pressure was thought to be the reason for the formation of the hollow spheres and stacking disks. Copyright © 2007 Inderscience Enterprises Ltd.|
|Source Title:||International Journal of Nanotechnology|
|Appears in Collections:||Staff Publications|
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