Measurement of the pyroelectric coefficient of poly(vinylidene fluoride) down to 3 K

R. Newsome, Eva Andrei

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The temperature dependence of the pyroelectric coefficient (Formula presented) of polyvinylidene fluoride ((Formula presented)) was measured from 307 K to the previously unexplored region of 3 K. The measurements were performed on a film of oriented (Β-phase) (Formula presented) by monitoring its surface charge response to quasistatic heating and cooling transients. The data exhibit a pure cubic temperature dependence from 3 to 6 K with no evidence of a linear term. This is consistent with the prediction by Szigeti and the Debye limit, respectively, for the primary (i.e., strain-free) and secondary contributions to pyroelectricity. The data from ∼20 to ∼150 K, which include the region of largest change, are well fit by an exponential function (i.e., (Formula presented)(Formula presented)), corresponding to a thermal activation energy of θ=(25.9±0.06) K. Our data for (Formula presented), from 100 to 250 K, are approximately proportional to the thermal expansion coefficient, recently published by Hartwig, which indicates that the observed pyroelectricity is dominated by piezoelectric (i.e., secondary) contributions in that temperature regime.

Original languageEnglish (US)
Pages (from-to)7264-7271
Number of pages8
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume55
Issue number11
DOIs
StatePublished - Jan 1 1997

Fingerprint

vinylidene
Pyroelectricity
fluorides
coefficients
Exponential functions
Surface charge
Temperature
Thermal expansion
pyroelectricity
Activation energy
Cooling
Heating
Monitoring
polyvinylidene fluoride
temperature dependence
exponential functions
thermal expansion
activation energy
cooling
heating

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

@article{d2f5f842bb224e5c84d506d61f7d1e4a,
title = "Measurement of the pyroelectric coefficient of poly(vinylidene fluoride) down to 3 K",
abstract = "The temperature dependence of the pyroelectric coefficient (Formula presented) of polyvinylidene fluoride ((Formula presented)) was measured from 307 K to the previously unexplored region of 3 K. The measurements were performed on a film of oriented (Β-phase) (Formula presented) by monitoring its surface charge response to quasistatic heating and cooling transients. The data exhibit a pure cubic temperature dependence from 3 to 6 K with no evidence of a linear term. This is consistent with the prediction by Szigeti and the Debye limit, respectively, for the primary (i.e., strain-free) and secondary contributions to pyroelectricity. The data from ∼20 to ∼150 K, which include the region of largest change, are well fit by an exponential function (i.e., (Formula presented)(Formula presented)), corresponding to a thermal activation energy of θ=(25.9±0.06) K. Our data for (Formula presented), from 100 to 250 K, are approximately proportional to the thermal expansion coefficient, recently published by Hartwig, which indicates that the observed pyroelectricity is dominated by piezoelectric (i.e., secondary) contributions in that temperature regime.",
author = "R. Newsome and Eva Andrei",
year = "1997",
month = "1",
day = "1",
doi = "10.1103/PhysRevB.55.7264",
language = "English (US)",
volume = "55",
pages = "7264--7271",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "11",

}

Measurement of the pyroelectric coefficient of poly(vinylidene fluoride) down to 3 K. / Newsome, R.; Andrei, Eva.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 55, No. 11, 01.01.1997, p. 7264-7271.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of the pyroelectric coefficient of poly(vinylidene fluoride) down to 3 K

AU - Newsome, R.

AU - Andrei, Eva

PY - 1997/1/1

Y1 - 1997/1/1

N2 - The temperature dependence of the pyroelectric coefficient (Formula presented) of polyvinylidene fluoride ((Formula presented)) was measured from 307 K to the previously unexplored region of 3 K. The measurements were performed on a film of oriented (Β-phase) (Formula presented) by monitoring its surface charge response to quasistatic heating and cooling transients. The data exhibit a pure cubic temperature dependence from 3 to 6 K with no evidence of a linear term. This is consistent with the prediction by Szigeti and the Debye limit, respectively, for the primary (i.e., strain-free) and secondary contributions to pyroelectricity. The data from ∼20 to ∼150 K, which include the region of largest change, are well fit by an exponential function (i.e., (Formula presented)(Formula presented)), corresponding to a thermal activation energy of θ=(25.9±0.06) K. Our data for (Formula presented), from 100 to 250 K, are approximately proportional to the thermal expansion coefficient, recently published by Hartwig, which indicates that the observed pyroelectricity is dominated by piezoelectric (i.e., secondary) contributions in that temperature regime.

AB - The temperature dependence of the pyroelectric coefficient (Formula presented) of polyvinylidene fluoride ((Formula presented)) was measured from 307 K to the previously unexplored region of 3 K. The measurements were performed on a film of oriented (Β-phase) (Formula presented) by monitoring its surface charge response to quasistatic heating and cooling transients. The data exhibit a pure cubic temperature dependence from 3 to 6 K with no evidence of a linear term. This is consistent with the prediction by Szigeti and the Debye limit, respectively, for the primary (i.e., strain-free) and secondary contributions to pyroelectricity. The data from ∼20 to ∼150 K, which include the region of largest change, are well fit by an exponential function (i.e., (Formula presented)(Formula presented)), corresponding to a thermal activation energy of θ=(25.9±0.06) K. Our data for (Formula presented), from 100 to 250 K, are approximately proportional to the thermal expansion coefficient, recently published by Hartwig, which indicates that the observed pyroelectricity is dominated by piezoelectric (i.e., secondary) contributions in that temperature regime.

UR - http://www.scopus.com/inward/record.url?scp=0001614521&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001614521&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.55.7264

DO - 10.1103/PhysRevB.55.7264

M3 - Article

AN - SCOPUS:0001614521

VL - 55

SP - 7264

EP - 7271

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 11

ER -