Pyroelectricity_F11

Pyroelectricity_F11 - the image above 5 Pyroelectricity in...

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1 Pyroelectricity GLY 4200 – Lecture 4 –Fall, 2011
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2 Pyroelectricity Effect Diagram
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3 Polarization • P i = p i Δ T where P i is the polarization vector, p i are the pyroelectric coefficients, and Δ T is the temperature change
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4 PVDF Polymers - such as Polyvinylidenefluoride (PVDF) - consist of long chains of molecules, as is shown in
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Unformatted text preview: the image above 5 Pyroelectricity in Polymers Certain molecular groups act as dipoles and can be oriented in an electric field When the poled polymer is exposed to heat, the sample expands, causing the dipole spacing to change, and generating a charge...
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This note was uploaded on 12/12/2011 for the course GLY 4200c taught by Professor Warburton during the Fall '10 term at FAU.

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Pyroelectricity_F11 - the image above 5 Pyroelectricity in...

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