Related Experiment Video
Updated: Apr 26, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Temperature effects on the scattering of polarons and bipolarons in organic conductors
Luiz Antonio Ribeiro Junior1, Wiliam Ferreira da Cunha, Geraldo Magela e Silva
1Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-581 83 Linköping, Sweden.
Abstract:
The scattering process between an electron-polaron and a hole-bipolaron has been simulated using a version of the Su-Schrieffer-Heeger (SSH) model modified to include an external electric field, Coulomb interactions, and temperature effects in the scope of nonadiabatic molecular dynamics. The simulations reveal remarkable details concerning the polaron-bipolaron recombination reaction. It is found that there exists a critical temperature regime below which a hole-bipolaron and a mixed state composed by an electron-polaron and an exciton are formed and a hole-bipolaron and a free electron are the resulting products of the collisional process, if the temperature is higher than the critical value. In addition, it is obtained that both channels depend sensitively on the strength of the applied electric field. These significant results may provide guidance to understand processes regarding electroluminescence in polymer diodes.
More Related Videos
Related Concept Videos
π Electron Effects on Chemical Shift: Overview
Induced Electric Dipoles
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
Molecular Shape and Polarity
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds
Potential Due to a Polarized Object

