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Localized Pressure‐Induced Ferroelectric Pattern Arrays of Semicrystalline Poly(vinylidene fluoride) by Microimprinting
Author(s) -
Kang S. J.,
Park Y. J.,
Hwang J. Y.,
Jeong H. J.,
Lee J. S.,
Kim K. J.,
Kim H.C.,
Huh J.,
Park C.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200601474
Subject(s) - materials science , ferroelectricity , dielectric , crystallinity , ferroelectric polymers , fluoride , polymer , composite material , optoelectronics , inorganic chemistry , chemistry
A polymer ferroelectric array embedded in an insulating paraelectric medium, with potential uses in nonvolatile memories, is fabricated by microimprinting poly(vinylidene fluoride) (PVDF) a patterned poly(dimethylsiloxane) with mold. The localized pressure induces a polymorphic transition into ferroelectric γ‐type PVDF, whereas the unpressed raised areas (see figure) remain of the α type (paraelectric).