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Título: Charge carrier scattering in polymers : a new neutral coupled soliton channel
Autor(es): Ribeiro, Luiz Antonio
Monteiro, Fábio Ferreira
Cunha, Wiliam Ferreira da
Silva, Geraldo Magela e
Assunto: Polímeros
Data de publicação: 2018
Editora: Springer Nature
Referência: RIBEIRO, Luiz Antonio et. al. Charge carrier scattering in polymers: a new neutral coupled soliton channel. Scientific Reports, v. 8, Art. n. 6595, 2018. DOI: 10.1038/s41598-018-24948-1. Disponível em:
Abstract: The dynamical scattering of two oppositely charged bipolarons in non-degenerate organic semiconducting lattices is numerically investigated in the framework of a one-dimensional tight-biding–Hubbard model that includes lattice relaxation. Our findings show that it is possible for the bipolaron pair to merge into a state composed of a confined soliton-antisoliton pair, which is characterized by the appearance of states within less than 0.1 eV from the Fermi level. This compound is in a narrow analogy to a meson confining a quark-antiquark pair. Interestingly, solitons are quasi-particles theoretically predicted to arise only in polymer lattices with degenerate ground state: in the general case of non-degenerate ground state polymers, isolated solitons are not allowed.
Licença: Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
DOI: 10.1038/s41598-018-24948-1
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