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


  • 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.

published proceedings


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