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	Tunable resonant frequencies for determining Young psila s moduli of nanowires
	Dujuan Zeng ; Xianlong Wei ; Liu, J.Z. ; Qing Chen ; Xide Li ; Quanshui Zheng
	2010-10-12 ; 2010-10-12
关键词	Experimental/ electric field effects elemental semiconductors nanowires semiconductor nanotubes semiconductor quantum wires silicon Young's modulus/ tunable resonant frequencies Young's moduli electric-field-induced resonance frequency nanowires nanotubes cantilever beams elastic modulus clamp point conditions electrical field effects Si/ A8140J Elasticity and anelasticity A6220D Elasticity, elastic constants/ Si/el
中文摘要	Measuring the electric-field-induced resonance frequency of nanowires and nanotubes as cantilever beams has become a popular method to derive their elastic modulus. However, this method is sensitive to the experimental uncertainties of the clamp point conditions. In a preceding paper, we found that such uncertainty could lead to 30%-70% errors of the derived elastic modulus and then we proposed a tunable resonance method as a remedy. In this paper, we implement the tunable resonance method in experiment. The fundamental resonant frequencies of a Si nanowire cantilever stimulated in an electrical field are measured with an extra support localized at different positions along the nanowire. Our results show that based on this set of measured frequencies, the uncertainties of the clamp boundary condition can be easily identified and filtered out and thus the deduced Young psila s modulus is more reliable.
语种	英语
出版者	American Institute of Physics ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79087]
专题	清华大学
推荐引用方式 GB/T 7714	Dujuan Zeng,Xianlong Wei,Liu, J.Z.,et al. Tunable resonant frequencies for determining Young psila s moduli of nanowires[J],2010, 2010.
APA	Dujuan Zeng,Xianlong Wei,Liu, J.Z.,Qing Chen,Xide Li,&Quanshui Zheng.(2010).Tunable resonant frequencies for determining Young psila s moduli of nanowires..
MLA	Dujuan Zeng,et al."Tunable resonant frequencies for determining Young psila s moduli of nanowires".(2010).

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