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Colloidal superionic conductors
Nanoparticles with highly asymmetric sizes and charges that self-assemble into crystals via electrostatics may exhibit behaviors reminiscent of those of metals or superionic materials. Here, we use coarse-grained molecular simulations with underdamped Langevin dynamics to explore how a binary charge...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10104562/ https://www.ncbi.nlm.nih.gov/pubmed/37018200 http://dx.doi.org/10.1073/pnas.2300257120 |
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author | Lin, Yange Olvera de la Cruz, Monica |
author_facet | Lin, Yange Olvera de la Cruz, Monica |
author_sort | Lin, Yange |
collection | PubMed |
description | Nanoparticles with highly asymmetric sizes and charges that self-assemble into crystals via electrostatics may exhibit behaviors reminiscent of those of metals or superionic materials. Here, we use coarse-grained molecular simulations with underdamped Langevin dynamics to explore how a binary charged colloidal crystal reacts to an external electric field. As the field strength increases, we find transitions from insulator (ionic state), to superionic (conductive state), to laning, to complete melting (liquid state). In the superionic state, the resistivity decreases with increasing temperature, which is contrary to metals, yet the increment decreases as the electric field becomes stronger. Additionally, we verify that the dissipation of the system and the fluctuation of charge currents obey recently developed thermodynamic uncertainty relation. Our results describe charge transport mechanisms in colloidal superionic conductors. |
format | Online Article Text |
id | pubmed-10104562 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-101045622023-10-05 Colloidal superionic conductors Lin, Yange Olvera de la Cruz, Monica Proc Natl Acad Sci U S A Physical Sciences Nanoparticles with highly asymmetric sizes and charges that self-assemble into crystals via electrostatics may exhibit behaviors reminiscent of those of metals or superionic materials. Here, we use coarse-grained molecular simulations with underdamped Langevin dynamics to explore how a binary charged colloidal crystal reacts to an external electric field. As the field strength increases, we find transitions from insulator (ionic state), to superionic (conductive state), to laning, to complete melting (liquid state). In the superionic state, the resistivity decreases with increasing temperature, which is contrary to metals, yet the increment decreases as the electric field becomes stronger. Additionally, we verify that the dissipation of the system and the fluctuation of charge currents obey recently developed thermodynamic uncertainty relation. Our results describe charge transport mechanisms in colloidal superionic conductors. National Academy of Sciences 2023-04-05 2023-04-11 /pmc/articles/PMC10104562/ /pubmed/37018200 http://dx.doi.org/10.1073/pnas.2300257120 Text en Copyright © 2023 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Physical Sciences Lin, Yange Olvera de la Cruz, Monica Colloidal superionic conductors |
title | Colloidal superionic conductors |
title_full | Colloidal superionic conductors |
title_fullStr | Colloidal superionic conductors |
title_full_unstemmed | Colloidal superionic conductors |
title_short | Colloidal superionic conductors |
title_sort | colloidal superionic conductors |
topic | Physical Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10104562/ https://www.ncbi.nlm.nih.gov/pubmed/37018200 http://dx.doi.org/10.1073/pnas.2300257120 |
work_keys_str_mv | AT linyange colloidalsuperionicconductors AT olveradelacruzmonica colloidalsuperionicconductors |