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Super-uniform ZnO nanohelices synthesized via thermal evaporation

机译:通过热蒸发合成超均匀ZnO纳米螺旋

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Super-uniform single crystal ZnO nanohelices synthesized by Sb induced thermal evaporation is reported. The ZnO nanohelices as a whole have an axial direction of (0001), perfect hexagonal cross section and length of tens of micrometres. There are six blocks in each period of the helices, and they grow along six equivalent directions (0 (1) over bar 11). The typical pitch distance, mean diameter and thickness of the nanowire is about 600, 400 and 100 nm. Calculation according to a simple model shows that the helical structure is energetically favourable. It could be used as photonic crystals or construct blocks in nanoscale optoelectronic and electromechanical systems. In addition to ZnO nanohelices, zigzag ZnO nanostructures were also obtained. (c) 2006 Elsevier Ltd. All rights reserved.
机译:报道了由Sb诱导的热蒸发合成的超均匀单晶ZnO纳米螺旋。整体而言,ZnO纳米螺旋具有(0001)的轴向方向,完美的六角形横截面和数十微米的长度。螺旋的每个周期中有六个块,它们沿六个等效方向(在条11上为0(1))生长。纳米线的典型间距,平均直径和厚度约为600、400和100 nm。根据简单模型的计算表明,螺旋结构在能量上是有利的。它可以用作光子晶体或在纳米级光电和机电系统中构建模块。除了ZnO纳米螺旋以外,还获得了锯齿形的ZnO纳米结构。 (c)2006 Elsevier Ltd.保留所有权利。

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