| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1441252 | Synthetic Metals | 2013 | 6 Pages |
•Freshly prepared PANI films are dried in static high-voltage electrical field.•This treatment affects the microstructure and conductivity of PANI films.•The most stable sample exhibiting σ = 374 S/m was achieved using 1 kV/cm.•Optical transmittance remains the same despite the increase of conductivity.
New approach of chemical bath deposition combined with drying of freshly polymerized PANI films in DC high-voltage static electrical field 0.6–2.7 kV/cm has been applied in present work. AFM and SEM microscopy revealed the significant changes of structure and morphology of PANI films, however the most important result of high-voltage treatment was the strong increase of conductivity of PANI films from 88 S/m for the reference sample untreated in high-voltage field up to 374 S/m for samples dried in the electric field (1.0 kV/cm). The dependence of PANI conductivity on the intensity of high-voltage field showed the maximum conductivity for 1.0 kV/cm. Effects of corona discharge observed for high-voltage field intensity above 2.0 kV/cm on the samples are also presented. Results showed the possibility to change the nanostructure, morphology and conductivity using high-voltage electrical field.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide
