Polaron dynamics in molecular polysilane wires
| Autor: | J Nožár, Jakub Šebera, S Nešpůrek |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Mechanical Engineering Photoconductivity Silylene Analytical chemistry Condensed Matter Physics Polaron Molecular physics Marcus theory Terahertz spectroscopy and technology chemistry.chemical_compound chemistry Mechanics of Materials Polysilane General Materials Science Density functional theory Charge carrier |
| Zdroj: | Materials Research Innovations. 15:s232-s235 |
| ISSN: | 1433-075X 1432-8917 |
| DOI: | 10.1179/143307511x13031890749451 |
| Popis: | Intrachain charge carrier transport was studied by means of theoretical computing on the model polymer poly[methyl(phenyl)silylene]. The Marcus theory, in which a dynamic electron–phonon coupling term was inserted into the reorganisation energy, was used for the modelling. The on chain charge carrier mobility was determined as 0·06 cm2 V−1 s−1 for 16 mer. For 20 mer, the lower value was found (i.e. 0·005 cm2 V−1 s−1). The experimental value obtained by microwave photoconductivity and time resolved terahertz spectroscopy (pump and probe method) was reported as 0·02 cm2 V−1 s−1. |
| Databáze: | OpenAIRE |
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