Network array of zinc oxide whiskers

作者：Xu CX; Sun XW^*; Chen BJ; Dong ZL; Yu MB; Zhang XH; Chua SJ

来源：Nanotechnology, 2005, 16(1): 70-73.

DOI：10.1088/0957-4484/16/1/015

A zinc oxide (ZnO) whisker network array with sixfold symmetry was fabricated on ZnO-buffered (0001) sapphire substrate by the vapour-phase transport method using a mixture of zinc oxide and graphite powders as source materials and patterned gold as catalyst. From the ZnO buffer layer, hexagonal ZnO nanorods with identical in-plane structure grew epitaxially along the [0001] orientation to form vertical stems. The branches grew horizontally from six side-surfaces of the vertical stem along [0110] and other equivalent directions. Most whiskers were confined along the six preferential orientations and interconnected with each other to form a regular network structure. The growth mechanism is discussed.

• 出版日期2005-1
• 单位东南大学; 南阳理工学院