Periodic ZnO nanorod arrays defined by polystyrene microsphere self-assembled monolayers
Periodic ZnO nanorod arrays defined by polystyrene microsphere self-assembled monolayers
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DOI：
10.1021/nl061399d
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发表时间：
2006-10-11
期刊：
影响因子：
10.8
通讯作者：
Xie, S. S.
中科院分区：
文献类型：
--
作者：
Liu, D. F.;Xiang, Y. J.;Xie, S. S.
我们展示了一种低成本和有效的方法来制造六边形图案，垂直排列的ZnO纳米棒阵列。利用选择性湿法刻蚀技术，在聚苯乙烯微球自组装膜的辅助下，制备出了催化金颗粒的六边形图案。金颗粒具有独立于聚苯乙烯微球直径的可调尺寸，并且形状固有地为圆形。每个ZnO棒通过催化剂引发的外延从催化位点单独生长，并且原始的六边形周期性被很好地保留。棒具有平坦的端部，并且棒的直径可以通过源材料的量来很好地控制。该方法为制备ZnO一维纳米结构提供了一种很有前途的方法，可用于二维光子晶体、传感器阵列、纳米激光阵列和光电器件。
We demonstrate a low-cost and effective method to fabricate hexagonally patterned, vertically aligned ZnO nanorod arrays. Selective wet-etching is used to develop the catalyzing gold particle hexagonal pattern with the aid of a polystyrene microsphere self-assembled monolayer. The gold particles have tunable sizes independent of the polystyrene microsphere's diameter and are inherently round in shape. Each ZnO rod is grown individually from a catalyzing site via catalyst-initiated epitaxy, and the original hexagonal periodicity is well-preserved. The rods have flat ends, and the diameters of the rods can be controlled well by the amount of source materials. This method provides a promising way to create ZnO one-dimensional nanostructures for applications as two-dimensional photonic crystal, sensor arrays, nanolaser arrays, and optoelectronic devices.