Space-charge-mediated anomalous ferroelectric switching in P(VDF-TrEE) polymer films

Weijin Hu, Zhihong Wang, Yuanmin Du, Xixiang Zhang, Tao Wu

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

We report on the switching dynamics of P(VDF-TrEE) copolymer devices and the realization of additional substable ferroelectric states via modulation of the coupling between polarizations and space charges. The space-charge-limited current is revealed to be the dominant leakage mechanism in such organic ferroelectric devices, and electrostatic interactions due to space charges lead to the emergence of anomalous ferroelectric loops. The reliable control of ferroelectric switching in P(VDF-TrEE) copolymers opens doors toward engineering advanced organic memories with tailored switching characteristics.
Original languageEnglish (US)
Pages (from-to)19057-19063
Number of pages7
JournalACS Applied Materials & Interfaces
Volume6
Issue number21
DOIs
StatePublished - Oct 16 2014

ASJC Scopus subject areas

  • Materials Science(all)

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