Far Infrared Dielectric Properties of Polypyrrole Doped with the Tosylate Anion
Abstract
The dielectric constants and optical conductivities of films of conducting polypyrrole with different doping levels were investigated. Measurements were carried out in the far infrared region (10-200cm-1) and dielectric properties were determined by analysis of reflection and transmission intensities at normal incidence. The samples were prepared electrochemically, providing controlling of the doping level through reduction of the as grown (oxidized) film. Electrical conductivity measurements were performed with a four point probe. A method to determine the real and imaginary part of the complex index of refraction described. The magnitudes and dispersive nature of the complex index refraction is described for a number of samples with different nature of the complex index refraction is described for a number of samples with different levels of conductivity. (JES)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1990
- Accession Number
- ADA226326
Entities
People
- G. C. Phillips
- J. C. Huang
- J. I. Chen
- J. Kumar
- R. Suresh