The Dielectric Properties of Conducting Polypyrrole in the Far-Infrared
The dielectric properties of conducting Polypyrole films were studied by performing reflection and transmission measurements using a Michelson interferometer in the Far Infrared. The experimental methods applied in sample preparation and data collection are described in detail. The complex index of refraction and optical conductivities were determined through the Fresnel equations. The conducting polymer films were characterized by the magnitude and dispersive nature of these dielectric quantities at different levels of doping. It is shown that the dielectric and electrical properties of conducting polypyrrole are readily tailorable. An attempt is made to fit the dielectric constants of the conducting polymer to Drude simple metal theory and the classical Debye model of polarizability. Electrical and thermal transport properties are compared to metals and systems with structural disorder such as amorphous semiconductors.
- Pub Date:
- Engineering: Materials Science; Physics: Condensed Matter