Reversible post-breakdown conduction in aluminum oxide-polymer capacitors

Qian Chen, Henrique L. Gomes, Paulo R F Rocha, Dago M. De Leeuw, Stefan C J Meskers

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Aluminum/Al2O3/polymer/metal capacitors submitted to a low-power constant current stress undergo dielectric breakdown. The post-breakdown conduction is metastable, and over time the capacitors recover their original insulating properties. The decay of the conduction with time follows a power law (1/t)α. The magnitude of the exponent α can be raised by application of an electric field and lowered to practically zero by optical excitation of the polyspirofluorene polymer. The metastable conduction is attributed to formation of metastable pairs of oppositely charged defects across the oxide-polymer interface, and the self-healing is related to resistive switching.

Original languageEnglish
Article number153509
JournalApplied Physics Letters
Volume102
Issue number15
DOIs
Publication statusPublished - 15 Apr 2013

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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