Abstract
Polyaniline (PANi)–zinc oxide (ZnO) nano-composites were prepared by chemical polymerization of aniline doped with ZnO nanoparticles. Surface pressure–area (π–A) isotherms for the PANi–ZnO nano-composite revealed phase transformations of the monolayer during compression. Langmuir–Blodgett (LB) films of PANi and PANi–ZnO nano-composite were characterized by use of UV–visible (UV–Vis) and Fourier-transform infrared spectroscopy, atomic force microscopy, and conductive atomic force microscopy (C-AFM). Local current–voltage (I–V) characteristics revealed the current range for PANi–ZnO nano-composite LB films was larger than that for PANi LB films. Conductive data images were recorded to investigate charge-transport current inhomogeneities in the LB films.
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