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Size dependence and spatial variation of electronic structure in nonpolar ZnO nanobelts.

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Size dependence and spatial variation of electronic structure in nonpolar ZnO nanobelts.

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dc.contributor.author Yang, Jack.
dc.contributor.author Li, Sean.
dc.contributor.author Zhao, Yang.
dc.contributor.author Zhao, Xuean.
dc.date.accessioned 2011-12-15T07:42:24Z
dc.date.available 2011-12-15T07:42:24Z
dc.date.copyright 2009
dc.date.issued 2011-12-15
dc.identifier.citation Yang, J., Li, S., Zhao, Y., & Zhao, X. (2009). Size Dependence and Spatial Variation of Electronic Structure in Nonpolar ZnO Nanobelts. Journal of Physical Chemistry C, 113(12), 4804–4808.
dc.identifier.uri http://hdl.handle.net/10220/7407
dc.description.abstract The enhancement of performance for next-generation optoelectronic devices is determined by how much we understand the size effects on the electronic structure and their spatial variation in low-dimensional nanostructured semiconductors. In this work, the size-dependence and spatial variation of the electronic structure of ZnO nanobelts were investigated with density functional theory and tight-binding model. The result shows that the thickness of the nanobelt exhibits stronger influence than the width on the band gap energy variation with the cross sectional area of the nanobelt larger than 0.75 nm2, which is consistent with the tight-binding modeling. Real space density-of-state mapping demonstrates alternating peaks and valleys due to the presence of 3- and 4-fold bonding sites along the nonpolar nanobelt surface.
dc.language.iso en
dc.relation.ispartofseries Journal of physical chemistry C
dc.rights © 2009 American Chemical Society
dc.subject DRNTU::Engineering::Materials::Photonics and optoelectronics materials.
dc.title Size dependence and spatial variation of electronic structure in nonpolar ZnO nanobelts.
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1021/jp8105666

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