Characterisation of nano-interdigitated electrodes
(2008) 17th International Vacuum Congress/13th International Conference on Surface Science/Internatinal Conference on Nanoscience and Technology 100. p.052045-052045- Abstract
- Interdigitated electrodes made up of two individually addressable interdigitated comb-like electrode structures have frequently been suggested as ultra sensitive electrochemical biosensors. Since the signal enhancement effects due to cycling of the reduced and oxidized species are strongly dependent on the inter electrode distances, since the nature of the enhancement is due to overlying diffusion layers, inter digitated electrodes with an electrode separation of less the non emicrometer a redesired for maximum signal amplification. Fabrication of submicron structures can only be made by advanced lithography techniques. By use of electron be amlithography we have fabricated arrays of interdigitated electrodes with an electrode separation... (More)
- Interdigitated electrodes made up of two individually addressable interdigitated comb-like electrode structures have frequently been suggested as ultra sensitive electrochemical biosensors. Since the signal enhancement effects due to cycling of the reduced and oxidized species are strongly dependent on the inter electrode distances, since the nature of the enhancement is due to overlying diffusion layers, inter digitated electrodes with an electrode separation of less the non emicrometer a redesired for maximum signal amplification. Fabrication of submicron structures can only be made by advanced lithography techniques. By use of electron be amlithography we have fabricated arrays of interdigitated electrodes with an electrode separation distance of 200nm and an electrode finger width of likewise 200nm. The entire electrode structure is 100 micrometre times 100 micrometre, and the active electrode area is dictated by the opening in the passivation layer, that is defined by UV lithography. Here we report measurements of redox cycling of ferrocyanide by coupled cyclic voltammograms, where the potential atone of the working electrodes are varied and either an oxidising or reducing potential is applied to the complimentary interdigitated electrode. The measurements show fast conversion and high collection efficiency round 87% as expected for nano-interdigitated electrodes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1586318
- author
- Skjolding, Lars Henrik LU ; Spegel, Christer LU ; Ribayrol, Aline LU ; Emnéus, Jenny LU and Montelius, Lars LU
- organization
- publishing date
- 2008
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Journal of Physics: Conference Series
- volume
- 100
- pages
- 052045 - 052045
- publisher
- IOP Publishing
- conference name
- 17th International Vacuum Congress/13th International Conference on Surface Science/Internatinal Conference on Nanoscience and Technology
- conference location
- Stockholm, Sweden
- conference dates
- 2007-07-02 - 2007-07-06
- external identifiers
-
- wos:000275655200141
- scopus:60549093378
- ISSN
- 1742-6588
- 1742-6596
- DOI
- 10.1088/1742-6596/100/5/052045
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Solid State Physics (011013006), Analytical Chemistry (S/LTH) (011001004)
- id
- dcfaf5a5-a6b9-48d3-b26b-a2e1e1976c12 (old id 1586318)
- date added to LUP
- 2016-04-01 12:32:09
- date last changed
- 2024-01-08 23:51:52
@inproceedings{dcfaf5a5-a6b9-48d3-b26b-a2e1e1976c12,
abstract = {{Interdigitated electrodes made up of two individually addressable interdigitated comb-like electrode structures have frequently been suggested as ultra sensitive electrochemical biosensors. Since the signal enhancement effects due to cycling of the reduced and oxidized species are strongly dependent on the inter electrode distances, since the nature of the enhancement is due to overlying diffusion layers, inter digitated electrodes with an electrode separation of less the non emicrometer a redesired for maximum signal amplification. Fabrication of submicron structures can only be made by advanced lithography techniques. By use of electron be amlithography we have fabricated arrays of interdigitated electrodes with an electrode separation distance of 200nm and an electrode finger width of likewise 200nm. The entire electrode structure is 100 micrometre times 100 micrometre, and the active electrode area is dictated by the opening in the passivation layer, that is defined by UV lithography. Here we report measurements of redox cycling of ferrocyanide by coupled cyclic voltammograms, where the potential atone of the working electrodes are varied and either an oxidising or reducing potential is applied to the complimentary interdigitated electrode. The measurements show fast conversion and high collection efficiency round 87% as expected for nano-interdigitated electrodes.}},
author = {{Skjolding, Lars Henrik and Spegel, Christer and Ribayrol, Aline and Emnéus, Jenny and Montelius, Lars}},
booktitle = {{Journal of Physics: Conference Series}},
issn = {{1742-6588}},
language = {{eng}},
pages = {{052045--052045}},
publisher = {{IOP Publishing}},
title = {{Characterisation of nano-interdigitated electrodes}},
url = {{http://dx.doi.org/10.1088/1742-6596/100/5/052045}},
doi = {{10.1088/1742-6596/100/5/052045}},
volume = {{100}},
year = {{2008}},
}