English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The work concerns the analysis of experimental time-resolved ESR spectra inphotoexcited polymer:fullerene blend, consisting of poly(3-hexilthiophene) andfullerene [6,6]-phenyl C_{61} -butyric acid methyl ester (at low temperature T= 100 K). The spectra are assumed to be determined by spin-coherent pairs ofcharged polarons P^{+} and P^{-} generated in the singlet state. The analysisis made within simple model of a set of first order processes, in whichP^{+}P$^{-}-pair spin evolution is described by the stochastic Liouvilleequation, allowing for fairly accurate description of experimental results.Simple analytical interpretation of obtained numerical results demonstratesthat trESR spectra can be represented as a superposition of antiphase and CIDEPcontributions together with the conventional thermal one. These contributionsare shown to change their signs with the increase of time in agreement withexperimental observations.

Photoinduced polarons in polymers. Time-resolved ESR analysis of polaron pairs in polymer:fullerene blends