ZnO symmetric nanosheets integrated with nanowalls
ZnO symmetric nanosheets integrated with nanowalls
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DOI：
10.1063/1.2005386
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发表时间：
2005-07
影响因子：
4
通讯作者：
Ruey‐Chi Wang;Chuan-Pu Liu;Jow-Lay Huang;Shu-Jen Chen
中科院分区：
文献类型：
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作者：
Ruey‐Chi Wang;Chuan-Pu Liu;Jow-Lay Huang;Shu-Jen Chen
采用应变辅助自催化方法，在500℃的低温下，成功地制备了由外延纳米球和对称单晶纳米片构成的各种不同的氧化锌集成纳米结构。这些纳米结构首先是通过应变辅助自催化生长机制在粗糙的氧化锌单晶薄膜上生长的。然后，通过纳米线的互连形成纳米墙。最后，从纳米壁的边缘生长出纳米薄片。生长机制得到了直接实验证据的支持。室温阴极发光光谱显示出较强而尖锐的紫外光发射和较弱而宽广的绿色发射。这种集成的纳米结构可以应用于开发自包含纳米电子学。
Diverse ZnO integrated nanostructures, constructed by epitaxial nanowalls and symmetric single-crystalline nanosheets, were successfully synthesized via a strain-assisted self-catalyzed process at a low temperature of 500°C. The nanostructures started with the growth of ZnO nanowires, nucleated on a rugged ZnO single-crystalline film via a strain-assisted self-catalyzed growth mechanism. The nanowalls were then formed by the interconnection of the nanowires. Finally, the nanosheets were grown from the edges of the nanowalls. The growth mechanisms were supported by direct experimental evidence. Room-temperature cathodoluminance spectra show a relatively strong and sharp ultraviolet emission as well as a weak and broad green emission. The integrated nanostructure may be applied to develop self-inclusive nanoelectronics.