Formation of hybrid structures: copper oxide nanocrystals templated on ultralong copper nanowires for open network sensing at room temperature
Formation of hybrid structures: copper oxide nanocrystals templated on ultralong copper nanowires for open network sensing at room temperature
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DOI：
10.1088/0957-4484/22/23/235701
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发表时间：
2011-06-10
期刊：
影响因子：
3.5
通讯作者：
Ho, G. W.
中科院分区：
文献类型：
--
作者：
Kevin, M.;Ong, W. L.;Ho, G. W.
制备具有均匀覆盖纳米晶体、形成高度互连的多孔纳米线网络的本质p型纳米线的简易大规模合成方法是p型传感的重要需求。在这里，我们展示了一个非常高宽高比(10（2)-10(5)）开放的互连杂化纳米晶体网络-纳米线铜和氧化铜纳米材料的合成。利用铜纳米线支架实现了金属-金属氧化物纳米晶-纳米线混合结构的多孔且高度互连的网络。证明了该杂化纳米材料的结构和组成的可调性。混合铜-氧化铜纳米线在没有任何工作温度的情况下表现出增强的气体/光传感性能。这可能是由于高度互连的纳米晶体-纳米线结构的多孔网络增强了介质扩散。
A facile large-scale synthesis approach for producing intrinsically p-type nanowires with uniform coverage of nanocrystals to form a highly interconnected porous nanowire network is of great demand for p-type sensing. Here, we have demonstrated synthesis of a very high aspect ratio (10(2)-10(5)) open network of interconnected hybrid nanocrystals-nanowire copper and copper oxide nanomaterials. The copper nanowire scaffold is employed to realize a porous and highly interconnected network of hybrid metal-metal oxide nanocrystal-nanowire structures. The structural and composition tunability of the hybrid nanomaterials is demonstrated. The hybrid copper-copper oxide nanowires exhibit enhanced gas/light sensing properties without any operating temperature. This may be attributed to enhanced medium diffusion due to the porous network of highly interconnected nanocrystal-nanowire structures.