TITLE

Thickness dependence of ferroelectric polarization switching in poly(vinylidene fluoride-trifluoroethylene) spin cast films

AUTHOR(S)
Xia, Feng; Xu, Haisheng; Fang, Fei; Razavi, B.; Cheng, Z.-Y.; Lu, Yu; Xu, Baomin; Zhang, Q. M.
PUB. DATE
February 2001
SOURCE
Applied Physics Letters;2/19/2001, Vol. 78 Issue 8, p1122
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In poly(vinylidene fluoride-trifluoroethylene) copolymer spin cast films, it has been observed that the polarization switching time increases as the film thickness is reduced to below 1 μm. We will show that this change with film thickness can be divided into two thickness regimes, i.e., those above 120-150 nm and those below that thickness. For films thicker than 120-150 nm, the change in the switching behavior is due to interface effects that can be modeled by an effective interface layer with lower dielectric constant that is in series with the film. For films below 120-150 nm thickness, there is an additional and very large increase of the switching time with reduced film thickness. This additional effect is caused by the precipitous drop of the crystallinity in films at this thickness range. © 2001 American Institute of Physics.
ACCESSION #
4710832

 

Related Articles

  • Polarization switching kinetics of ferroelectric nanomesas of vinylidene fluoride-trifluoroethylene copolymer. Gaynutdinov, R. V.; Lysova, O. A.; Yudin, S. G.; Tolstikhina, A. L.; Kholkin, A. L.; Fridkin, V. M.; Ducharme, Stephen // Applied Physics Letters;7/13/2009, Vol. 95 Issue 2, p023303 

    The polarization switching kinetics of ferroelectric polymer nanomesas was investigated using piezoresponse force microscopy. The nanomesas were made by self-organization from Langmuir–Blodgett films of a 70% vinylidene fluoride and 30% trifluoroethylene copolymer. The polarization...

  • Cellular polyethylene-naphthalate ferroelectrets: Foaming in supercritical carbon dioxide, structural and electrical preparation, and resulting piezoelectricity. Fang, P.; Wegener, M.; Wirges, W.; Gerhard, R.; Zirkel, L. // Applied Physics Letters;5/7/2007, Vol. 90 Issue 19, p192908 

    Polymer foams with electrically charged cellular voids, the so-called ferroelectrets, are soft piezoelectric transducer materials. Several polymers such as polyethylene terephthalate or cyclo-olefin copolymers are under investigation with respect to their suitability as ferroelectrets. Here, the...

  • Nanoscopic measurements of the electrostriction responses in P(VDF/TrFE) ultra-thin-film copolymer using atomic force microscopy. El Hami, K.; Yamada, H.; Matsushige, K. // Applied Physics A: Materials Science & Processing;2001, Vol. 72 Issue 3, p347 

    Abstract. Atomic force microscopy (AFM) has been used as a new method to perform nanoscale measurements of the electrostriction coefficients in the lamellae structure of the ferroelectric P(VDF/TrFE) 73/27 copolymers. The result found shows that the electrostriction coefficient inside (in the...

  • Specific Features of the Electrical Properties upon Smeared Phase Transitions in Multicomponent Ferropiezoelectric Ceramics Based on Lead Zirconate Titanate. Burkhanov, A. I.; Shil�nikov, A. V.; Mamakov, Yu. N.; Akbaeva, G. M. // Physics of the Solid State;Sep2002, Vol. 44 Issue 9, p1741 

    The reverse dependences of the permittivity e'[sub r] (E[sub =]) and the polarization and depolarization currents in multicomponent ferropiezoelectric ceramics based on lead zirconate titanate (PZT) are investigated over a wide range of temperatures. The results obtained make it possible to...

  • Imaging of ferroelectric domain walls by force microscopy. Saurenbach, F.; Terris, B. D. // Applied Physics Letters;4/23/1990, Vol. 56 Issue 17, p1703 

    We have imaged ferroelectric domain walls in the ferroelectric-ferroelastic material Gd2(Mo)3 using force microscopy. By using a mode of imaging developed for the detection of static surface charge, the force gradient due to the polarization charge at the sample surface was imaged. The signal...

  • Control of structure and electrical properties of lead-zirconium-titanate-based ferroelectric.... Auciello, O.; Gifford, K.D. // Applied Physics Letters;5/23/1994, Vol. 64 Issue 21, p2873 

    Examines the control of structure and electrical properties of lead-zirconium-titanate-based ferroelectric capacitors through ion beam sputter deposition. Reduction in remanent polarization; Formation of second nonferroelectric phases and charged defects; Exhibition of smaller fatigue in lead...

  • Influence of phase hardening on transition broadening in a (1-x)NaNbO[sub 3]—xLiNbO[sub 3] system. Pozdnyakova, I. V.; Reznichenko, L. A.; Gavrilyachenko, V. G. // Technical Physics Letters;Oct99, Vol. 25 Issue 10, p800 

    Dielectric methods are used to study phase-transition broadening in a (1-x)NaNbO[sub 3]-xLiNbO[sub 3] system. It is observed that the lowest values correspond to regions of transition between implanted solid solutions and substitutional solid solutions with 0.05≤x≤0.07. It is shown...

  • Diserine Sulfate Monohydrate: Symmetry, Piezoelectric Properties, and Phase Transitions. Lemanov, V. V.; Popov, S. N.; Bakhurin, V. V.; Zaıtseva, N. V. // Physics of the Solid State;Jul2001, Vol. 43 Issue 7, p1336 

    A new compound, diserine sulfate monohydrate, was synthesized, and single crystals of this compound were grown. X-ray diffraction studies were carried out, and the temperature dependences of the piezoelectric response of these crystals were measured. A conclusion was drawn that the crystals are...

  • Dielectric relaxation in Ba-based layered perovskites. Kholkin, A. L.; Avdeev, M.; Costa, M. E. V.; Baptista, J. L.; Dorogovtsev, S. N. // Applied Physics Letters;7/30/2001, Vol. 79 Issue 5 

    Ferroelectric materials with Bi-layered structure such as SrBi[sub 2]Ta[sub 2]O[sub 9] and SrBi[sub 2]Nb[sub 2]O[sub 9] are now intensively investigated in view of their applications in nonvolatile computer memories and high-temperature piezoelectric transducers. When Sr[sup 2+] is substituted...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics