Crossref journal-article
AIP Publishing
Applied Physics Letters (317)
Abstract

The manner in which ultrathin films of alumina, deposited at the dielectric-electrode interface, affect the recoverable energy density associated with (BiFeO3)0.6–(SrTiO3)0.4 (BFST) thin film capacitors has been characterised. Approximately 6 nm of alumina on 400 nm of BFST increases the maximum recoverable energy of the system by around 30% from ∼13 Jcc−1 to ∼17 Jcc−1. Essentially, the alumina acts in the same way as a naturally present parasitic “dead-layer,” distorting the polarisation-field response such that the ultimate polarisation associated with the BFST is pushed to higher values of electric field. The work acts as a proof-of-principle to illustrate how the design of artificial interfacial dielectric “dead-layers” can increase energy densities in simple dielectric capacitors, allowing them to compete more generally with other energy storage technologies.

Bibliography

McMillen, M., Douglas, A. M., Correia, T. M., Weaver, P. M., Cain, M. G., & Gregg, J. M. (2012). Increasing recoverable energy storage in electroceramic capacitors using “dead-layer” engineering. Applied Physics Letters, 101(24).

Authors 6
  1. M. McMillen (first)
  2. A. M. Douglas (additional)
  3. T. M. Correia (additional)
  4. P. M. Weaver (additional)
  5. M. G. Cain (additional)
  6. J. M. Gregg (additional)
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Dates
Type When
Created 12 years, 8 months ago (Dec. 12, 2012, 6:16 p.m.)
Deposited 2 years, 2 months ago (June 24, 2023, 10:39 p.m.)
Indexed 1 month ago (July 30, 2025, 7 a.m.)
Issued 12 years, 8 months ago (Dec. 10, 2012)
Published 12 years, 8 months ago (Dec. 10, 2012)
Published Online 12 years, 8 months ago (Dec. 12, 2012)
Published Print 12 years, 8 months ago (Dec. 10, 2012)
Funders 0

None

@article{McMillen_2012, title={Increasing recoverable energy storage in electroceramic capacitors using “dead-layer” engineering}, volume={101}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4772016}, DOI={10.1063/1.4772016}, number={24}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={McMillen, M. and Douglas, A. M. and Correia, T. M. and Weaver, P. M. and Cain, M. G. and Gregg, J. M.}, year={2012}, month=dec }