Electron-beam irradiation induced shape transformation of Sn-SnO2 nanocables

被引：24

作者：

Wang, B. ^{[1
]}

Yang, Y. H. ^{[1
]}

Yang, G. W. ^{[1
]}

机构：

[1] Zhongshan Univ, Sch Phys Sci & Engn, Inst Optoelect & Funct Composite Mat, State Key Lab Optoelect & Funct Composite Mat, Guangzhou 510275, Peoples R China

来源：

NANOTECHNOLOGY | 2006年 / 17卷 / 24期

关键词：

D O I：

10.1088/0957-4484/17/24/003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In situ observations of the shape transformation of Sn-SnO2 coaxial nanocables induced by electron- beam irradiation have been performed in a transmission electron microscope. First, nanocables spontaneously transform into nanopeapods with Sn peas and SnO2 pods through the melting and condensing mechanism of Sn in SnO2 nanoshells. Nanopeapods then transform into SnO2 nanotubes covered by Sn islands through the nano-jet mechanism, and Sn islands spirally enwind the nanotubes with a spiral angle of 26.56 degrees due to the chirality of the SnO2 nanoshells. Nanostructures consisting of SnO2 trunks and Sn branches finally form through size-confinement basal growth.

引用

页码：5916 / 5921

页数：6

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