Article ID Journal Published Year Pages File Type
597381 Colloids and Surfaces A: Physicochemical and Engineering Aspects 2007 5 Pages PDF
Abstract

The immobilization of conducting poly(3,4-ethylenedioxythiophene)–poly(styrene sulfonate) (PEDOT–PSS) nanoparticles by Langmuir–Blodgett (LB) technique has been reported. Composite films of ODA/PEDOT–PSS and ODA–SA/PEDOT–PSS were fabricated by LB inducing deposition method. The surface pressure (π)–area (A) isotherm of the composite monolayer at air/liquid interface was studied. The result shows that there is the intense electrostatic force between SO3−-group of PSS and NH3+-group of aliphatic amine. The solid composite LB film was investigated by UV–vis spectrum, atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) method. The results show that ODA–SA/PEDOT–PSS had higher film-processing capability than ODA/PEDOT–PSS film. Electrostatic force between ODA and PEDOT–PSS was confirmed by XPS analysis. An intensity enhancement of S (2p) of PEDOT in composite LB films comparing with spin-coated PEDOT–PSS films was observed. Electrical characteristic of these composite LB films was measured and the conductive mechanism of composite films was also included.

Related Topics
Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry
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