NDLI: Polarization profiling of the surface region of PVDF and P(VDF-TrFE)

Content Provider	IEEE Xplore Digital Library
Author	Ploss, B. Bianzano, O.
Copyright Year	1994
Description	Author affiliation: Inst. fur Angewandte Phys., Karlsruhe Univ., Germany (Ploss, B.; Bianzano, O.)
Abstract	Inhomogeneous polarization profiles are a typical property of ferroelectric polymers. Particularly in the surface region, the occurrence of a nonpolar layer is often observed. Different mechanisms can cause the decrease of the polarization near the surface. The first is the injection of charge from the metal contacts into the polymer during the poling when high electric fields are applied to the sample. The second is a structural variation of the sample near the surface e. g., a lower degree of crystallinity than in the bulk. The LIMM method i.e., a scan of the polarization profile with thermal waves, is particularly appropriate for an investigation of the surface near region of a sample. The resolution of LIMM has been improved to be better than 100 nm by an increase of the modulation frequencies into the MHz region. With this increased resolution, the surface near polarization in samples of polyvinylidenefluoride and its copolymers with trifluorethylene has been investigated.
Starting Page	206
Ending Page	211
File Size	294118
Page Count	6
File Format	PDF
ISBN	0780319400
DOI	10.1109/ISE.1994.514769
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-09-07
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pyroelectricity Thermal conductivity Optical propagation Polymers Frequency modulation Piezoelectric polarization Current measurement Frequency domain analysis Intensity modulation Temperature
Content Type	Text
Resource Type	Article

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Pyroelectric effects in PVDF and P(VDF-TrFE)

Analysis of the spatial distribution of polarization in PVDF-foils from the frequency spectra of the pyroelectric current

Determination of polarisation profiles in P(VDF-TrFE) films with LIMM and LITP

Resonance characteristics and polarization profile of partially poled P(VDF-TrFE) copolymer

Binding energies of trapped charges in PVDF and P(VDF/TrFE)

Thermally stimulated depolarization current in PVDF, P(VDF-TFE) and P(VDF-TrFE)

Piezoelectric and pyroelectric properties of PT/P(VDF-TrFE) 0-3 composites

The electric behavior of PVDF and P(VDF-TrFE) during corona poling

Pyroelectric properties of PZT/P(VDF-TrFE) 0-3 composites

Polarization profiling of the surface region of PVDF and P(VDF-TrFE)

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Pyroelectric effects in PVDF and P(VDF-TrFE)

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