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Electric double layer formed by polarized ferroelectric thin films.

Publication ,  Journal Article
Ferris, RJ; Lin, S; Therezien, M; Yellen, BB; Zauscher, S
Published in: ACS applied materials & interfaces
April 2013

Ferroelectric surfaces can have very high surface charge densities that can be harnessed for manipulation of charged colloidal particles and soft matter in aqueous environments. Here, we report on the electrical double layer (EDL) formed by polarized ultrasmooth lead zirconium titanate (US-PZT) thin films in dilute electrolyte solutions. Using colloidal probe force microscopy (CPFM) measurements, we show that the ion distribution within the double layer can be changed by reversing the ferroelectric polarization state of US-PZT. The interaction force in dilute 1:1 electrolyte solution between the negatively charged probe and a positive surface charge (upward polarized) US-PZT thin film is attractive, while the interaction force is repulsive for a negative surface charge (downward polarized) film. We modeled these interactions with a constant-potential EDL model between dissimilar surfaces with the inclusion of a Stern layer. We report the surface potentials at the inner and outer-Helmholtz planes both for polarization states and for a range of ionic strength solutions. Effects of free-charge carriers, limitations of the analytical model, and effects of surface roughness are discussed.

Duke Scholars

Published In

ACS applied materials & interfaces

DOI

EISSN

1944-8252

ISSN

1944-8244

Publication Date

April 2013

Volume

5

Issue

7

Start / End Page

2610 / 2617

Related Subject Headings

  • Nanoscience & Nanotechnology
  • 51 Physical sciences
  • 40 Engineering
  • 34 Chemical sciences
  • 09 Engineering
  • 03 Chemical Sciences
 

Citation

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Ferris, R. J., Lin, S., Therezien, M., Yellen, B. B., & Zauscher, S. (2013). Electric double layer formed by polarized ferroelectric thin films. ACS Applied Materials & Interfaces, 5(7), 2610–2617. https://doi.org/10.1021/am3031954
Ferris, Robert J., Shihong Lin, Mathieu Therezien, Benjamin B. Yellen, and Stefan Zauscher. “Electric double layer formed by polarized ferroelectric thin films.ACS Applied Materials & Interfaces 5, no. 7 (April 2013): 2610–17. https://doi.org/10.1021/am3031954.
Ferris RJ, Lin S, Therezien M, Yellen BB, Zauscher S. Electric double layer formed by polarized ferroelectric thin films. ACS applied materials & interfaces. 2013 Apr;5(7):2610–7.
Ferris, Robert J., et al. “Electric double layer formed by polarized ferroelectric thin films.ACS Applied Materials & Interfaces, vol. 5, no. 7, Apr. 2013, pp. 2610–17. Epmc, doi:10.1021/am3031954.
Ferris RJ, Lin S, Therezien M, Yellen BB, Zauscher S. Electric double layer formed by polarized ferroelectric thin films. ACS applied materials & interfaces. 2013 Apr;5(7):2610–2617.
Journal cover image

Published In

ACS applied materials & interfaces

DOI

EISSN

1944-8252

ISSN

1944-8244

Publication Date

April 2013

Volume

5

Issue

7

Start / End Page

2610 / 2617

Related Subject Headings

  • Nanoscience & Nanotechnology
  • 51 Physical sciences
  • 40 Engineering
  • 34 Chemical sciences
  • 09 Engineering
  • 03 Chemical Sciences