Measurement of Lateral Charge Propagation in Polyaniline Layers with the Scanning Electrochemical Microscope.

Citation:

Mandler D, Unwin PR. Measurement of Lateral Charge Propagation in Polyaniline Layers with the Scanning Electrochemical Microscope. J. Phys. Chem. BJournal of Physical Chemistry B. 2003;107 (2) :407 - 410.

Date Published:

2003///

Abstract:

The local injection and lateral propagation of charge in ultrathin polyaniline (PAN) layers were studied with the scanning electrochem. microscope (SECM). Monolayers of PAN were deposited on a glass substrate using the LB method and were chem. reduced using Na dithionite. A microelectrode held close to the PAN layer was used to generate a flux of an oxidant, i.e., Fe(phen)33+ (phen = 1,10-phenanthroline) which diffused to the surface and locally oxidized the reduced PAN. By simulating the current-time transients, the kinetics of lateral charge propagation were evaluated. [on SciFinder(R)]

Notes:

CAPLUS AN 2002:947105(Journal)