Projects per year
Abstract
A thin film of Nafion, of approximately 5 μm thickness, asymmetrically deposited onto a 6 μm thick film of poly(ethylene terephthalate) (PET) fabricated with a 5, 10, 20, or 40 μm microhole, is shown to exhibit prominent ionic diode behavior involving cation charge carrier (“cationic diode”). The phenomenon is characterized via voltammetric, chronoamperometric, and impedance methods. Phenomenologically, current rectification effects are comparable to those observed in nanocone devices where space-charge layer effects dominate. However, for microhole diodes a resistive, a limiting, and an overlimiting potential domain can be identified and concentration polarization in solution is shown to dominate in the closed state.
Original language | English |
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Pages (from-to) | 11272-11278 |
Journal | ACS Applied Materials and Interfaces |
Volume | 9 |
Issue number | 12 |
DOIs | |
Publication status | Published - 29 Mar 2017 |
Fingerprint
Dive into the research topics of 'A cationic diode based on asymmetric nafion film deposits'. Together they form a unique fingerprint.Projects
- 2 Finished
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New Materials for Ionic Diodes and Ionic Photodiodes
Marken, F. (PI)
1/11/15 → 31/01/18
Project: UK charity
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Applying Long-Lived Metastable States in Switchable Functionality via Kinetic Control of Molecular Assembly
Raithby, P. (PI), Burrows, A. (CoI), Lewis, D. (CoI), Marken, F. (CoI), Parker, S. (CoI), Walsh, A. (CoI) & Wilson, C. (CoI)
Engineering and Physical Sciences Research Council
1/11/12 → 30/04/18
Project: Research council
Profiles
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Frank Marken
- Department of Chemistry - Professor
- Institute for Sustainable Energy and the Environment
- Centre for Sustainable Chemical Technologies (CSCT)
- Water Innovation and Research Centre (WIRC)
- Centre for Nanoscience and Nanotechnology
- IAAPS: Propulsion and Mobility
- Centre for Bioengineering & Biomedical Technologies (CBio)
Person: Research & Teaching, Affiliate staff