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Ranjan V, Nardelli MB, Bernholc J. Electric field induced phase transitions in polymers: a novel mechanism for high speed energy storage. Phys Rev Lett. 2012;108(8):087802doi: 10.1103/PhysRevLett.108.087802.
Ranjan, V., Nardelli, M. B., & Bernholc, J. (2012). Electric field induced phase transitions in polymers: a novel mechanism for high speed energy storage. Physical review letters, 108(8), 087802. https://doi.org/10.1103/PhysRevLett.108.087802
Ranjan, V, et al. "Electric field induced phase transitions in polymers: a novel mechanism for high speed energy storage." Physical review letters vol. 108,8 (2012): 087802. doi: https://doi.org/10.1103/PhysRevLett.108.087802
Ranjan V, Nardelli MB, Bernholc J. Electric field induced phase transitions in polymers: a novel mechanism for high speed energy storage. Phys Rev Lett. 2012 Feb 24;108(8):087802. doi: 10.1103/PhysRevLett.108.087802. Epub 2012 Feb 23. PMID: 22463575.
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Phys Rev Lett. 2012 Feb 24;108(8):087802. doi: 10.1103/PhysRevLett.108.087802. Epub 2012 Feb 23.

Electric field induced phase transitions in polymers: a novel mechanism for high speed energy storage.

Physical review letters

V Ranjan, Marco Buongiorno Nardelli, J Bernholc

Affiliations

  1. Center for High Performance Simulation and Department of Physics, North Carolina State University, Raleigh, North Carolina 27695-7518, USA.

PMID: 22463575 DOI: 10.1103/PhysRevLett.108.087802

Abstract

Using first-principles simulations, we identify the microscopic origin of the nonlinear dielectric response and high energy density of polyvinylidene-fluoride-based polymers as a cooperative transition path that connects nonpolar and polar phases of the system. This path explores a complex torsional and rotational manifold and is thermodynamically and kinetically accessible at relatively low temperatures. Furthermore, the introduction of suitable copolymers significantly alters the energy barriers between phases providing tunability of both the energy density and the critical fields.

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