期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 1, 期 9, 页码 1468-1471出版社
AMER CHEMICAL SOC
DOI: 10.1021/jz100487c
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资金
- Chinese National Nature Science Foundation
SnO2 nanobelts are attracting much attention for their promising applications in gas-sensing nanodevices. However, at present, too little is known on the surface structure and charge of these as-grown nanostructures. Herein, the surfaces of zigzag rutile SnO2 nanobelts are investigated at atomic scale using the recently developed negative spherical-aberration imaging technique man aberration-corrected transmission electron microscope. It is found that most of the {101} surfaces of zigzag SnO2 nanobelts, synthesized by a solid-vapor process, are reduced surfaces terminated by Sn atoms, and the Sn-terminated surface is a nonpolar surface, i.e., electrostatically stable termination.
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