Journal
NANO LETTERS
Volume 14, Issue 2, Pages 480-485Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl403426c
Keywords
ZnO wires; in situ TEM; electromechanical resonance; fatigue behavior; elastic modulus
Categories
Funding
- Program of Introducing Talents of Discipline to Universities
- National Major Research Program of China [2013CB932602]
- NSFC [51372020, 51232001, 51002008, 51172022]
- Beijing Municipal Commission of Education
- Fundamental Research Funds for the Central Universities
- Program for Changjiang Scholars, and Innovative Research Team in University
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The fatigue behavior of ZnO nanowires (NWs) and microwires was systematically investigated with in situ transmission electron microscopy electromechanical resonance method. The elastic modulus and mechanical quality factors of ZnO wires were obtained. No damage or failure was found in the intact ZnO wires after resonance for about 10(8)-10(9) cycles, while the damaged ZnO NW under electron beam (e-beam) irradiation fractured after resonance for seconds. The research results will provide a useful guide for designing, fabricating, and optimizing electromechanical nanodevices based on ZnO nanomaterials, as well as future applications.
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