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首页> 外文期刊>Crystal growth & design >Novel type-II Zn_3P_2/ZnO core/shell nanowires: Synthesis, characteristic, and photoluminescence properties
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Novel type-II Zn_3P_2/ZnO core/shell nanowires: Synthesis, characteristic, and photoluminescence properties

机译：新型II型Zn_3P_2 / ZnO核/壳纳米线：合成，特征和光致发光性质

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摘要

Novel type-II Zn_3P_2/ZnO core/shell nanowires were synthesized for the first time. First, Zn_3P_2 nanowires with high yield were synthesized via a catalyst-free chemical vapor deposition method. Then, a facile low-cost surface oxidization process was used to obtain the ZnO nanocrystalline shells. Field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), and highangle angular darkfield scanning transmission electron microscopy (HAADF-STEM) were used to characterize the morphologies, crystal structures, and element composition of the as-fabricated core/shell nanowires. Room-temperature photoluminescence properties of them were studied. A possible growth mechanism was proposed. The heterostructure fabrication approach developed here may be extended to other functional heterostructure material systems. The experimental results together with the energy band analysis demonstrated that the type-II Zn_3P_2/ZnO core/shell nanowire heterostructures have substantial potential for future photovoltaic nanodevice applications.
机译：首次合成了新型的II型Zn_3P_2 / ZnO核/壳纳米线。首先，通过无催化剂化学气相沉积法合成了高产率的Zn_3P_2纳米线。然后，采用一种简便的低成本表面氧化工艺获得了ZnO纳米晶壳。使用场发射扫描电子显微镜（FESEM），高分辨率透射电子显微镜（HRTEM）和高角度暗场扫描透射电子显微镜（HAADF-STEM）表征了所制备的晶体的形貌，晶体结构和元素组成核/壳纳米线。研究了它们的室温光致发光特性。提出了一种可能的增长机制。这里开发的异质结构制造方法可以扩展到其他功能异质结构材料系统。实验结果和能带分析表明，II型Zn_3P_2 / ZnO核/壳纳米线异质结构具有未来光电纳米器件应用的巨大潜力。

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