Direct quantification of mechanical behavior and electromechanical coupling in semiconducting nanowires

Horacio Dante Espinosa, Ravi Agrawal, Bei Peng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

One dimensional nanostructures, like nanowires and nanotubes, have conceptually been shown as potential building blocks for next generation devices like logic circuits [1], transistors [2], and solar cells [3]. In particular, nanowires (NWs) made of semiconducting materials, such as Zinc Oxide (ZnO) and Gallium Nitride (GaN), have drawn immense research interest due to their electromechanical coupling. For instance, a microfiber-NW hybrid device [4] has been developed to generate electricity exploiting the piezoelectric behavior of ZnO NWs [5]. To maximize the potential performance of such NW-based devices, characterization of individual NWs at the component level is crucial. In this presentation, we will present a unique experimental tool to characterize the mechanical and electromechanical behavior of individual NWs. In particular, experimentally obtained mechanical properties of ZnO NWs will be presented and compared against theoretical predictions. Preliminary results on the piezoelectric properties of GaN NWs will also be presented.

Original languageEnglish (US)
Title of host publicationSociety for Experimental Mechanics - SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009
Pages1270-1271
Number of pages2
Volume2
StatePublished - Dec 1 2009
EventSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009 - Albuquerque, NM, United States
Duration: Jun 1 2009Jun 4 2009

Other

OtherSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009
Country/TerritoryUnited States
CityAlbuquerque, NM
Period6/1/096/4/09

ASJC Scopus subject areas

  • Computational Mechanics

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