Nanoscale domain growth dynamics of ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) thin films

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Nanoscale domain growth dynamics of ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) thin films were investigated by piezoresponse force microscopy. A 90 nm thick ferroelectric polymer thin films were fabricated on Au substrate by spin-coating method. The domain size of nanoscale dot pattern was linearly proportional to logarithmic value of the pulse width. However there was a significant asymmetry in nucleation and lateral domain growth depending on the voltage polarity, which implies the existence of the preferred polarization states. The obtained activation field indicates the nucleation-limited domain switching behaviors of ferroelectric polymer thin films.
Publisher
AMER INST PHYSICS
Issue Date
2010-01
Language
English
Article Type
Article
Keywords

ATOMIC-FORCE MICROSCOPY; NANOMETER-SCALE; MEMORIES; VOLTAGE; DEVICES

Citation

APPLIED PHYSICS LETTERS, v.96, no.1

ISSN
0003-6951
DOI
10.1063/1.3290247
URI
http://hdl.handle.net/10203/96350
Appears in Collection
MS-Journal Papers(저널논문)EE-Journal Papers(저널논문)
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