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Issue 7, 2011
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Charge carrier mobility in poly[methyl(phenyl)silylene] studied by time-resolved terahertz spectroscopy and molecular modelling

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Abstract

Time-resolved terahertz spectroscopy and combination of quantum chemistry modeling and molecular dynamics simulations were used for the determination of charge carrier mobility in poly[methyl(phenyl)silylene]. Using time-resolved THz spectroscopy we established the on-chain charge carrier drift mobility in PMPSi as 0.02 cm2 V−1 s−1. This value is low due to the formation of polarons: the hole is self-trapped in a potential formed by local chain distortion and the transient THz conductivity spectra show signatures of its oscillations within this potential well. This view is supported by the agreement between experimental and calculated values of the on-chain charge carrier mobility.

Graphical abstract: Charge carrier mobility in poly[methyl(phenyl)silylene] studied by time-resolved terahertz spectroscopy and molecular modelling

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Supplementary files

Article information


Submitted
02 Jun 2010
Accepted
22 Oct 2010
First published
15 Dec 2010

Phys. Chem. Chem. Phys., 2011,13, 2850-2856
Article type
Paper

Charge carrier mobility in poly[methyl(phenyl)silylene] studied by time-resolved terahertz spectroscopy and molecular modelling

H. Němec, I. Kratochvílová, P. Kužel, J. Šebera, A. Kochalska, J. Nožár and S. Nešpůrek, Phys. Chem. Chem. Phys., 2011, 13, 2850
DOI: 10.1039/C0CP00774A

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