Abstract
The charge transport properties of thin films prepared from colloidal dispersion of polyaniline stabilized by poly(N-vinylpyrrolidone) (PANI/PVP) have been investigated. The electrical characterization of coplanar device comprising of gold electrodes and PANI/PVP film deposited by spin coating served to gain insights into the contact and bulk resistance. The films prepared from PANI/PVP colloidal dispersion show high stability over a large temperature range. Temperature dependent measurements in the range from 90 to 350 K reveal that the charge transport can be described by a three-dimensional variable-range hopping mechanism as the dominant mode in the films. The stability of the films cast from dispersion within a large temperature range opens the possibility of the application as a polymer semiconductor layer in sensors and charge-transport interlayer in organic solar cells.
| Original language | English |
|---|---|
| Pages (from-to) | 1710-1716 |
| Number of pages | 7 |
| Journal | Journal of Polymer Science, Part B: Polymer Physics |
| Volume | 54 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 1 Sept 2016 |
Keywords
- charge transport
- colloidal dispersion
- colloids
- conductivity
- conjugated polymers
- polyaniline
- thin films
- thin layers