Doped polymer electrodes for high performance ferroelectric capacitors on plastic substrates
AuthorsKhan, M. A.
Bhansali, Unnat Sampatraj
Saleh, Moussa M.
Alshareef, Husam N.
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Materials Science and Engineering Program
Advanced Nanofabrication, Imaging and Characterization Core Lab
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AbstractFlexible ferroelectric capacitors with doped polymer electrodes have been fabricated on plastic substrates with performance as good as metal electrodes. The effect of doping on the morphology of polymer electrodes and its impact on device performance have been studied. Improved fatigue characteristics using doped and undoped poly (3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) electrodes versus metal electrodes are observed. It is shown that the polymer electrodes follow classical ferroelectric and dielectric responses, including series resistance effects. The improved device characteristics obtained using highly conducting doped PEDOT:PSS suggest that it may be used both as an electrode and as global interconnect for all-polymer transparent circuits on flexible substrates.
CitationDoped polymer electrodes for high performance ferroelectric capacitors on plastic substrates 2012, 101 (14):143303 Applied Physics Letters
JournalApplied Physics Letters