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    Synthesis and Characterization of Pb(Zr0.53, Ti0.47)O3-Pb(Nb1/3, Zn2/3)O3 Thin Film Cantilevers for Energy Harvesting Applications

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    Type
    Article
    Authors
    Fuentes-Fernandez, E. M. A.
    Debray-Mechtaly, W.
    Quevedo-Lopez, M. A.
    Gnade, B.
    Leon-Salguero, E.
    Shah, P.
    Alshareef, Husam N. cc
    KAUST Department
    Materials Science and Engineering Program
    Date
    2012-01-18
    Permanent link to this record
    http://hdl.handle.net/10754/550846
    
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    Abstract
    A complete analysis of the morphology, crystallographic orientation, and resulting electrical properties of Pb(Zr0.53,Ti0.47) Pb(Nb1/3, Zn2/3)O3 (PZT-PZN) thin films, as well as the electrical behavior when integrated in a cantilever for energy harvesting applications, is presented. The PZT-PZN films were deposited using sol-gel methods. We report that using 20% excess Pb, a nucleation layer of PbTiO3 (PT), and a fast ramp rate provides large grains, as well as denser films. The PZT-PZN is deposited on a stack of TiO2/PECVD SiO2/Si3N4/thermal SiO2/Poly-Si/Si. This stack is designed to allow wet-etching the poly-Si layer to release the cantilever structures. It was also found that the introduction of the poly-Si layer results in larger grains in the PZT-PZN film. PZT-PZN films with a dielectric constant of 3200 and maximum polarization of 30 μC/cm2 were obtained. The fabricated cantilever devices produced ~300–400 mV peak-to-peak depending on the cantilever design. Experimental results are compared with simulations.
    Citation
    Synthesis and Characterization of Pb(Zr0.53, Ti0.47)O3-Pb(Nb1/3, Zn2/3)O3 Thin Film Cantilevers for Energy Harvesting Applications 2012, 2012:1 Smart Materials Research
    Publisher
    Hindawi Publishing Corporation
    Journal
    Smart Materials Research
    ISSN
    2090-3561
    2090-357X
    DOI
    10.1155/2012/872439
    Additional Links
    http://www.hindawi.com/journals/smr/2012/872439/
    ae974a485f413a2113503eed53cd6c53
    10.1155/2012/872439
    Scopus Count
    Collections
    Articles; Materials Science and Engineering Program

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