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    Converse Piezoelectric Effect Induced Transverse Deflection of a Free-Standing ZnO Microbelt

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    Type
    Article
    Authors
    Hu, Youfan
    Gao, Yifan
    Singamaneni, Srikanth
    Tsukruk, Vladimir V.
    Wang, Zhong Lin cc
    KAUST Grant Number
    DMS 0706436
    CMMI 0403671
    Date
    2009-07-08
    Permanent link to this record
    http://hdl.handle.net/10754/597877
    
    Metadata
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    Abstract
    We demonstrate the first electric field induced transverse deflection of a single-crystal, free-standing ZnO microbelt as a result of converse piezoelectric effect. For a microbelt growing along the c-axis, a shear stress in the a-c plane can be induced when an electric field E is applied along the a-axis of the wurtzite structure. As amplified by the large aspect ratio of the microbelt that grows along the c-axis, the strain localized near the root can be detected via the transverse deflection perpendicular to the ZnO microbelt. After an experimental approach was carefully designed and possible artifacts were ruled out, the experimentally observed degree of deflection of the microbelt agrees well with the theoretically expected result. The device demonstrated has potential applications as transverse actuators/sensors/switches and electric field induced mechanical deflectors. © 2009 American Chemical Society.
    Citation
    Hu Y, Gao Y, Singamaneni S, Tsukruk VV, Wang ZL (2009) Converse Piezoelectric Effect Induced Transverse Deflection of a Free-Standing ZnO Microbelt. Nano Lett 9: 2661–2665. Available: http://dx.doi.org/10.1021/nl901102k.
    Sponsors
    Research supported by DARPA (Army/AMCOM/REDSTONE AR, W31P4Q-08-1-0009), BES DOE (DE-FG02-07ER46394), Air Force Office (FA9550-08-1-0446), DARPA/ARO W911NF-08-1-0249, KAUST Global Research Partnership, World Premier International Research Center (WPI) Initiative on Materials Nanoarchitectonics, MEXT, Japan, and NSF (DMS 0706436, CMMI 0403671).
    Publisher
    American Chemical Society (ACS)
    Journal
    Nano Letters
    DOI
    10.1021/nl901102k
    PubMed ID
    19518084
    ae974a485f413a2113503eed53cd6c53
    10.1021/nl901102k
    Scopus Count
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