Abstract
The evolution of the frequency and temperature dependence of the conductivity of cis-polyacetylene [ cis-(CH) x ] lightly doped with iodine is reported. As the dopant concentration is increased, the frequency-dependent contribution to the conductivity remains unchanged while the frequency-independent contribution increases dramatically. These results are inconsistent with the formation of small isolated metallic islands embedded in undoped cis-(CH) x . The data support the idea that even at the lightest dopant levels studied (d.c. conductivity increased by only one order of magnitude), the doped regions are multiply connected, not isolated. Comparison with the temperature- and frequency-dependent conductivities of cis and trans-(CH) x implies that the doped regions are isomerized to the trans configuration and that there may be some structural evolution in the undoped fibril cores, in agreement with earlier spectroscopic and structural studies.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
