Dynamic fatigue studies of ZnO nanowires by in-situ transmission electron microscopy

被引：33

作者：

Gao, Zhiyuan ^{[1
,2
]}

Ding, Yong ^{[1
]}

Lin, Shisheng ^{[1
,3
]}

Hao, Yue ^{[2
]}

Wang, Zhong Lin ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[2] Xidian Univ, Inst Microelect, Xian 710071, Peoples R China

[3] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2009年 / 3卷 / 7-8期

关键词：

MECHANICAL-PROPERTIES; TEM;

D O I：

10.1002/pssr.200903235

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The fatigue behavior of ceramic ZnO nanowires (NWs) has been investigated under resonance cyclic loading conditions using in-situ transmission electron microscopy (TEM). After mechanical deformation at the resonance frequency at a vibration angle of 5.2 degrees for 35 billion cycles, no failure or any defect generations have been found. We believe that the dislocation-free nature of NWs and the large surface-to-volume ratio contribute to the NWs' ability to undergo deformation without fatigue or fracture, proving their durability and toughness for nanogenerators and nanopiezotronics.

引用

页码：260 / 262

页数：3

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