Charge Carrier Scattering in Polymers: A New Neutral Coupled Soliton Channel

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...

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Autores principales: Ribeiro, Luiz Antonio, Monteiro, Fábio Ferreira, da Cunha, Wiliam Ferreira, e Silva, Geraldo Magela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5919967/
https://www.ncbi.nlm.nih.gov/pubmed/29700347
http://dx.doi.org/10.1038/s41598-018-24948-1
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author Ribeiro, Luiz Antonio
Monteiro, Fábio Ferreira
da Cunha, Wiliam Ferreira
e Silva, Geraldo Magela
author_facet Ribeiro, Luiz Antonio
Monteiro, Fábio Ferreira
da Cunha, Wiliam Ferreira
e Silva, Geraldo Magela
author_sort Ribeiro, Luiz Antonio
collection PubMed
description 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.
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spelling pubmed-59199672018-05-01 Charge Carrier Scattering in Polymers: A New Neutral Coupled Soliton Channel Ribeiro, Luiz Antonio Monteiro, Fábio Ferreira da Cunha, Wiliam Ferreira e Silva, Geraldo Magela Sci Rep Article 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. Nature Publishing Group UK 2018-04-26 /pmc/articles/PMC5919967/ /pubmed/29700347 http://dx.doi.org/10.1038/s41598-018-24948-1 Text en © The Author(s) 2018 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 http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Ribeiro, Luiz Antonio
Monteiro, Fábio Ferreira
da Cunha, Wiliam Ferreira
e Silva, Geraldo Magela
Charge Carrier Scattering in Polymers: A New Neutral Coupled Soliton Channel
title Charge Carrier Scattering in Polymers: A New Neutral Coupled Soliton Channel
title_full Charge Carrier Scattering in Polymers: A New Neutral Coupled Soliton Channel
title_fullStr Charge Carrier Scattering in Polymers: A New Neutral Coupled Soliton Channel
title_full_unstemmed Charge Carrier Scattering in Polymers: A New Neutral Coupled Soliton Channel
title_short Charge Carrier Scattering in Polymers: A New Neutral Coupled Soliton Channel
title_sort charge carrier scattering in polymers: a new neutral coupled soliton channel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5919967/
https://www.ncbi.nlm.nih.gov/pubmed/29700347
http://dx.doi.org/10.1038/s41598-018-24948-1
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AT esilvageraldomagela chargecarrierscatteringinpolymersanewneutralcoupledsolitonchannel

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