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Charge transfer between quasi-zero-dimensional nanostructures

K. Král and M. Menšík

Institute of Physics, Academy of Sciences of Czech Republic, v.v.i., Praha 8, Czech Republic

 

E-mail: kral@fzu.cz

Abstract: In the present paper, we show the main features of the theoretical formula allowing us to understand the irreversible transfer of electrons or holes, as it may be observed in some electrically conducting (conjugated) polymers. The formula reported here is derived with the use of the nonequilibrium quantum transport theory. The key role in the formula is played by the electron–phonon interaction which is included in an approximation going beyond the limits of the finite order of the perturbation calculation. The transfer formula is developed for a simple model of the stacked conjugated polymer, which is represented here by two interacting quantum dots. The numerical calculations show the dependence of the charge carrier mobility on the charge carrier concentration and on the lattice temperature. A comparison with organic field-effect transistor experiments and with molecular-scale modeling on conjugated polymers is promising.

Keywords: Conductive polymer ; Electron transfer ; Nanostructures ; Quantum dots ; Mobility of charge carriers ; Electron–phonon coupling 

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-018-0431-9

 

Chemical Papers 72 (7) 1697–1705 (2018)

Monday, February 26, 2024

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