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Thermo-switchable Polymer Dielectrics

Published online by Cambridge University Press:  28 March 2011

Ross S. Johnson ,
Fenil M. Kholwadwala  and
Shawn M. Dirk
Ross S. Johnson
Affiliation:
Organic Materials Department, Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185
Fenil M. Kholwadwala
Affiliation:
Organic Materials Department, Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185
Shawn M. Dirk
Affiliation:
Organic Materials Department, Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185
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Abstract

We are interested in utilizing the thermo-switchable properties of precursor poly(p-phenylene vinylene) (PPV) polymers to develop capacitor dielectrics that will fail at specific temperatures due to the material irreversibly switching from an insulator to a conducting polymer. By utilizing different leaving groups on the polymer main chain, the temperature at which the polymer transforms into a conductor can be varied over a range of temperatures. Electrical characterization of thin-film capacitors prepared from several precursor PPV polymers indicates that these materials have good dielectric properties until they reach elevated temperatures, at which point conjugation of the polymer backbone effectively disables the device. Here, we present the synthesis, dielectric processing, and electrical characterization of a new thermo-switchable polymer dielectric.

Keywords

polymerdielectricdielectric properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1312: Symposium HH/II/JJ – Polymer-Based Materials and Composites—Synthesis, Assembly and Applications , 2011 , mrsf10-1312-hh07-09
Copyright
Copyright © Materials Research Society 2011

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References

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