Abstract
Measurements of the dynamics of the photoinduced 0.45-eV midgap absorption associated with photogenerated charged solitons in trans-polyacetylene are reported. We have studied the intensity, polarization, and temperature dependences of the dynamics of this band with 5-ps resolution. Two types of charged solitons are clearly identified. First, there are directly photogenerated Su-Schrieffer soliton pairs which form following intrachain absorption and geminately recombine on subpicosecond time scales. At later times (\ensuremath{\gtrsim}20 ps), there are charged solitons formed by an interchain absorption mechanism where polarons are formed and diffuse to convert residual neutral solitons to charged solitons.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.