Pyroelectricity of water ice

Hanfu Wang, Richard Curtis Bell, Martin J. Iedema, Gregory K. Schenter, Kai Wu, James P. Cowin

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Water ice usually is thought to have zero pyroelectricity by symmetry. However, biasing it with ions breaks the symmetry because of the induced partial dipole alignment. This unmasks a large pyroelectricity. Ions were soft-landed upon 1 μm films of water ice at temperatures greater than 160 K. When cooled below 140-150 K, the dipole alignment locks in. Work function measurements of these films then show high and reversible pyroelectric activity from 30 to 150 K. For an initial ∼10 V induced by the deposited ions at 160 K, the observed bias below 150 K varies approximately as 10 V × (T/150 K)2. This implies that water has pyroelectric coefficients as large as that of many commercial pyroelectrics, such as lead zirconate titanate (PZT). The pyroelectricity of water ice, not previously reported, is in reasonable agreement with that predicted using harmonic analysis of a model system of SPC ice. The pyroelectricity is observed in crystalline and compact amorphous ice, deuterated or not. This implies that for water ice between 0 and 150 K (such as astrophysical ices), temperature changes can induce strong electric fields (∼10 MV/m) that can influence their chemistry, ion trajectories, or binding.

Original languageEnglish (US)
Pages (from-to)6379-6389
Number of pages11
JournalJournal of Physical Chemistry B
Volume112
Issue number20
DOIs
StatePublished - May 22 2008

Fingerprint

Pyroelectricity
pyroelectricity
Ice
ice
Water
water
Ions
ions
alignment
dipoles
harmonic analysis
Harmonic analysis
symmetry
astrophysics
Electric fields
Trajectories
trajectories
chemistry
Crystalline materials
Temperature

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Wang, H., Bell, R. C., Iedema, M. J., Schenter, G. K., Wu, K., & Cowin, J. P. (2008). Pyroelectricity of water ice. Journal of Physical Chemistry B, 112(20), 6379-6389. https://doi.org/10.1021/jp073870c
Wang, Hanfu ; Bell, Richard Curtis ; Iedema, Martin J. ; Schenter, Gregory K. ; Wu, Kai ; Cowin, James P. / Pyroelectricity of water ice. In: Journal of Physical Chemistry B. 2008 ; Vol. 112, No. 20. pp. 6379-6389.
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Wang, H, Bell, RC, Iedema, MJ, Schenter, GK, Wu, K & Cowin, JP 2008, 'Pyroelectricity of water ice', Journal of Physical Chemistry B, vol. 112, no. 20, pp. 6379-6389. https://doi.org/10.1021/jp073870c

Pyroelectricity of water ice. / Wang, Hanfu; Bell, Richard Curtis; Iedema, Martin J.; Schenter, Gregory K.; Wu, Kai; Cowin, James P.

In: Journal of Physical Chemistry B, Vol. 112, No. 20, 22.05.2008, p. 6379-6389.

Research output: Contribution to journalArticle

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Wang H, Bell RC, Iedema MJ, Schenter GK, Wu K, Cowin JP. Pyroelectricity of water ice. Journal of Physical Chemistry B. 2008 May 22;112(20):6379-6389. https://doi.org/10.1021/jp073870c