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Ultrathin single-crystal ZnO nanobelts : Ag-catalyzed growth and field emission property.

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Ultrathin single-crystal ZnO nanobelts : Ag-catalyzed growth and field emission property.

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Title: Ultrathin single-crystal ZnO nanobelts : Ag-catalyzed growth and field emission property.
Author: Xing, G. Z.; Fang, X. S.; Zhang, Z.; Wang, D. D.; Huang, X.; Guo, J.; Liao, L.; Zheng, Z.; Xu, H. R.; Yu, T.; Shen, Zexiang.; Huan, Alfred Cheng Hon.; Sum, Tze Chien.; Zhang, Hua.; Wu, T.
Copyright year: 2010
Abstract: We report the growth of ultrathin single-crystal ZnO nanobelts by using a Ag-catalyzed vapor transport method. Extensive transmission electron microscopy and atomic force microscopy measurements reveal that the thickness of the ultrathin ZnO nanobelts is ∼2 nm. Scanning electron microscopy and post-growth annealing studies suggest a ‘1D branching and 2D filling’ growth process. Our results demonstrate the critical role of catalyst in the deterministic synthesis of nanomaterials with the desired morphology. In addition, these ultrafine nanobelts exhibit stable field emission with unprecedented high emission current density of 40.17 mA cm−2. These bottom-up building blocks of ultrathin ZnO nanobelts may facilitate the construction of advanced electronic and photonic nanodevices.
Subject: DRNTU::Engineering::Materials.
Type: Journal Article
Series/ Journal Title: Nanotechnology
School: School of Materials Science and Engineering
Rights: © 2010 IOP Publishing Ltd This is the author created version of a work that has been peer reviewed and accepted for publication by Nanotechnology, IOP Publishing Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: DOI: 10.1088/0957-4484/21/25/255701.
Version: Accepted version

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