Micropatterning and impedance characterization of an electrically percolating layer-by-layer assembly Academic Article

abstract

• AbstractMicropatterned layerbylayer (LbL) assemblies were studied as a potential platform for sensor applications by performing impedance characterization throughout a range of electrolyte concentrations. Conductive LbL thin films were prepared with carbon black nanoparticles dispersed in the polymer matrix to provide an electrically conductive network. LbL assemblies were micropatterned using a photolithographic liftoff method, and a test circuit was constructed as multiple interdigitating coplanar electrodes. Impedance spectra were collected between 104 and 106 Hz within a flow cell containing NaCl solutions ranging from 0.0011.0M. These preliminary results demonstrate the ability to pattern conductive LbL composites and underscore the potential utility and shortcomings of their use in sensor applications.

authors

• Grunlan, Jaime
• Sue, Hung-Jue

published proceedings

• ELECTROANALYSIS

author list (cited authors)

• Everett, W. N., Jan, C. J., Sue, H., & Grunlan, J. C.

citation count

• 6

complete list of authors

• Everett, W Neil||Jan, C Jason||Sue, H-J||Grunlan, Jaime C

publication date

• May 2007

publisher

• Wiley  Publisher

published in

• Electroanalysis  Journal

keywords

• Carbon Black
• Conductive Composite
• Electric Double Layer Capacitance
• Polyelectrolyte Assembly
• Thin-film Multilayer

Digital Object Identifier (DOI)

• 10.1002/elan.200603811

start page

• 964

end page

• 972

volume

• 19

issue

• 9

URL

• http://dx.doi.org/10.1002/elan.200603811