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Initial Growth of Single-Crystalline Nanowires: From 3D Nucleation to 2D Growth

机译:单晶纳米线的初始生长:从3D成核到2D生长

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摘要

The initial growth stage of the single-crystalline Sb and Co nanowires with preferential orientation was studied, which were synthesized in porous anodic alumina membranes by the pulsed electrodeposition technique. It was revealed that the initial growth of the nanowires is a three-dimensional nucleation process, and then gradually transforms to two-dimensional growth via progressive nucleation mechanism, which resulting in a structure transition from polycrystalline to single crystalline. The competition among the nuclei inside the nanoscaled-confined channel and the growth kinetics is responsible for the structure transition of the initial grown nanowires.
机译:研究了具有优先取向的单晶Sb和Co纳米线的初始生长阶段,该纳米线通过脉冲电沉积技术在多孔阳极氧化铝膜中合成。揭示了纳米线的初始生长是三维成核过程,然后通过渐进成核机制逐渐转变为二维生长,从而导致结构从多晶转变为单晶。纳米级受限通道内的原子核之间的竞争与生长动力学是造成最初生长的纳米线结构转变的原因。

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