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    High-performance ferroelectric memory based on phase-separated films of polymer blends

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    Type
    Article
    Authors
    Khan, Yasser
    Bhansali, Unnat Sampatraj
    Almadhoun, Mahmoud N.
    Odeh, Ihab N.
    Cha, Dong Kyu
    Alshareef, Husam N. cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Core Labs
    Electrical Engineering Program
    Functional Nanomaterials and Devices Research Group
    Imaging and Characterization Core Lab
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    SABIC - Corporate Research and Innovation Center (CRI) at KAUST
    Date
    2013-10-29
    Online Publication Date
    2013-10-29
    Print Publication Date
    2014-03
    Permanent link to this record
    http://hdl.handle.net/10754/563051
    
    Metadata
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    Abstract
    High-performance polymer memory is fabricated using blends of ferroelectric poly(vinylidene-fluoride-trifluoroethylene) (P(VDF-TrFE)) and highly insulating poly(p-phenylene oxide) (PPO). The blend films spontaneously phase separate into amorphous PPO nanospheres embedded in a semicrystalline P(VDF-TrFE) matrix. Using low molecular weight PPO with high miscibility in a common solvent, i.e., methyl ethyl ketone, blend films are spin cast with extremely low roughness (Rrms ≈ 4.92 nm) and achieve nanoscale phase seperation (PPO domain size < 200 nm). These blend devices display highly improved ferroelectric and dielectric performance with low dielectric losses (<0.2 up to 1 MHz), enhanced thermal stability (up to ≈353 K), excellent fatigue endurance (80% retention after 106 cycles at 1 KHz) and high dielectric breakdown fields (≈360 MV/m). © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Sponsors
    The authors acknowledge the generous financial support from KAUST and Saudi Basic Industries Corporation (SABIC) Grant No. 2000000015.
    Publisher
    Wiley
    Journal
    Advanced Functional Materials
    DOI
    10.1002/adfm.201302056
    ae974a485f413a2113503eed53cd6c53
    10.1002/adfm.201302056
    Scopus Count
    Collections
    Articles; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Electrical Engineering Program; Material Science and Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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