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Structural and electronic properties of ZnO nanotubes from density functional calculations

机译:基于密度泛函计算的ZnO纳米管的结构和电子性质

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摘要

The structural and electronic properties of armchair and zigzag ZnO nanotubes were studied using density functional theory with the generalized gradient approximation. It was found that the strain energy required for rolling a ZnO graphitic sheet into a tube is lower than those for BN and GaN nanotubes. Both the armchair and zigzag ZnO nanotubes were found to be direct gap semiconductors with the gaps decreasing with the diameter increase.
机译:使用密度泛函理论和广义梯度近似研究了扶手椅形和之字形ZnO纳米管的结构和电子性能。已经发现,将ZnO石墨片卷成管所需的应变能低于BN和GaN纳米管的应变能。发现扶手椅状和之字形的ZnO纳米管都是直接间隙半导体,其间隙随着直径的增加而减小。

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