Charge transport in poly(methylphenylsilane): The case for superimposed disorder and polaron effects
| Autor: | Heinz Bässler, P. M. Borsenberger, R. J. Perry |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Photocurrent
Arrhenius equation Electron mobility Polymers and Plastics Condensed matter physics Charge (physics) Activation energy Condensed Matter Physics Polaron chemistry.chemical_compound Superposition principle symbols.namesake chemistry Materials Chemistry symbols Polysilane Physical and Theoretical Chemistry |
| Zdroj: | Journal of Polymer Science Part B: Polymer Physics. 32:1677-1685 |
| ISSN: | 1099-0488 0887-6266 |
| DOI: | 10.1002/polb.1994.090320912 |
| Popis: | Careful analysis of the temperature dependence of the hole mobility in poly (methylphenylsilane) indicates that the functional dependence is between an Arrhenius law and a ln μ ∝ T−2 law as predicted by a model of disorder-controlled hopping. This is attributed to the superposition of disorder and polaron effects. A method is presented for separating the two contributions. The evolution of time-of-flight photocurrent transients with decreasing temperature is consistent with the disorder parameter derived from the temperature dependence of the mobility. © 1994 John Wiley & Sons, Inc. |
| Databáze: | OpenAIRE |
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