title: X-ray photoelectron spectroscopic investigation of conducting polymer blends.
abstract: Electrochemically prepared films of conducting polymers of polypyrrole and polythiophene and their blends with polyamide have been investigated by X-ray photoelectron spectroscopy. In the N1s region of the spectra of films containing polypyrrole the peak corresponding to N(+) at 402.0 eV is separated from that of neutral N. The intensity of the N(+) peak can be correlated with the electrical conductivity of the films and the spectroscopically derived ratio of F/N(+) is close to 4 indicating that one BF(-)(4) dopant ion is incorporated for every oxidized nitrogen center. In the spectra of films of polythiophene and its blends peaks corresponding to S and S(+) can not be resolved but again the F/C ratio correlates with the electrical conductivity.
authors.affiliation: Department of Chemistry, Bilkent University, 06533, Ankara, Turkey.
authors.forename: S
authors.initials: S
authors.lastname: Süzer
authors.forename: L
authors.initials: L
authors.lastname: Toppare
authors.forename: K R
authors.initials: KR
authors.lastname: Hallam
authors.forename: G C
authors.initials: GC
authors.lastname: Allen