Self-Assembled [20] Twin Junctions Formed by Intercrossing of ZnO Nanowires

详细信息    查看全文

• 作者：Xudong Shan ; Xinzheng Zhang ; Jingyun Gao ; Liping You ; Hongjun Xu ; Jun Xu ; Dapeng Yu ; Hengqiang Ye
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：October 22, 2009
• 年：2009
• 卷：113
• 期：42
• 页码：18014-18019
• 全文大小：309K
• 年卷期：v.113,no.42(October 22, 2009)
• ISSN：1932-7455

文摘

We report on the unique twin junctions formed by the intersection of two ZnO nanowires (NWs) during growth. These twin boundaries (TBs) in junctions such as [20]/(013) TBs, [20]/(011) TBs, [20]/(012) TBs, and [20]/(023) TBs all contain the common [20] direction, whose microstructures are systematically studied. In addition, the interface energies of these TBs are calculated. We specifically compare the interface energy with the elastic energy of the NWs and then suggest a self-assembly model to explain the formation of these twin junctions, which is attributed to a consequence of minimizing the total energy contributed by the interface energy of boundaries and the elasticity of deformation of NWs.