Cargando…
Molecular engineered conjugated polymer with high thermal conductivity
Traditional polymers are both electrically and thermally insulating. The development of electrically conductive polymers has led to novel applications such as flexible displays, solar cells, and wearable biosensors. As in the case of electrically conductive polymers, the development of polymers with...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5903882/ https://www.ncbi.nlm.nih.gov/pubmed/29670943 http://dx.doi.org/10.1126/sciadv.aar3031 |
_version_ | 1783315011482943488 |
---|---|
author | Xu, Yanfei Wang, Xiaoxue Zhou, Jiawei Song, Bai Jiang, Zhang Lee, Elizabeth M. Y. Huberman, Samuel Gleason, Karen K. Chen, Gang |
author_facet | Xu, Yanfei Wang, Xiaoxue Zhou, Jiawei Song, Bai Jiang, Zhang Lee, Elizabeth M. Y. Huberman, Samuel Gleason, Karen K. Chen, Gang |
author_sort | Xu, Yanfei |
collection | PubMed |
description | Traditional polymers are both electrically and thermally insulating. The development of electrically conductive polymers has led to novel applications such as flexible displays, solar cells, and wearable biosensors. As in the case of electrically conductive polymers, the development of polymers with high thermal conductivity would open up a range of applications in next-generation electronic, optoelectronic, and energy devices. Current research has so far been limited to engineering polymers either by strong intramolecular interactions, which enable efficient phonon transport along the polymer chains, or by strong intermolecular interactions, which enable efficient phonon transport between the polymer chains. However, it has not been possible until now to engineer both interactions simultaneously. We report the first realization of high thermal conductivity in the thin film of a conjugated polymer, poly(3-hexylthiophene), via bottom-up oxidative chemical vapor deposition (oCVD), taking advantage of both strong C=C covalent bonding along the extended polymer chain and strong π-π stacking noncovalent interactions between chains. We confirm the presence of both types of interactions by systematic structural characterization, achieving a near–room temperature thermal conductivity of 2.2 W/m·K, which is 10 times higher than that of conventional polymers. With the solvent-free oCVD technique, it is now possible to grow polymer films conformally on a variety of substrates as lightweight, flexible heat conductors that are also electrically insulating and resistant to corrosion. |
format | Online Article Text |
id | pubmed-5903882 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-59038822018-04-18 Molecular engineered conjugated polymer with high thermal conductivity Xu, Yanfei Wang, Xiaoxue Zhou, Jiawei Song, Bai Jiang, Zhang Lee, Elizabeth M. Y. Huberman, Samuel Gleason, Karen K. Chen, Gang Sci Adv Research Articles Traditional polymers are both electrically and thermally insulating. The development of electrically conductive polymers has led to novel applications such as flexible displays, solar cells, and wearable biosensors. As in the case of electrically conductive polymers, the development of polymers with high thermal conductivity would open up a range of applications in next-generation electronic, optoelectronic, and energy devices. Current research has so far been limited to engineering polymers either by strong intramolecular interactions, which enable efficient phonon transport along the polymer chains, or by strong intermolecular interactions, which enable efficient phonon transport between the polymer chains. However, it has not been possible until now to engineer both interactions simultaneously. We report the first realization of high thermal conductivity in the thin film of a conjugated polymer, poly(3-hexylthiophene), via bottom-up oxidative chemical vapor deposition (oCVD), taking advantage of both strong C=C covalent bonding along the extended polymer chain and strong π-π stacking noncovalent interactions between chains. We confirm the presence of both types of interactions by systematic structural characterization, achieving a near–room temperature thermal conductivity of 2.2 W/m·K, which is 10 times higher than that of conventional polymers. With the solvent-free oCVD technique, it is now possible to grow polymer films conformally on a variety of substrates as lightweight, flexible heat conductors that are also electrically insulating and resistant to corrosion. American Association for the Advancement of Science 2018-03-30 /pmc/articles/PMC5903882/ /pubmed/29670943 http://dx.doi.org/10.1126/sciadv.aar3031 Text en Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Xu, Yanfei Wang, Xiaoxue Zhou, Jiawei Song, Bai Jiang, Zhang Lee, Elizabeth M. Y. Huberman, Samuel Gleason, Karen K. Chen, Gang Molecular engineered conjugated polymer with high thermal conductivity |
title | Molecular engineered conjugated polymer with high thermal conductivity |
title_full | Molecular engineered conjugated polymer with high thermal conductivity |
title_fullStr | Molecular engineered conjugated polymer with high thermal conductivity |
title_full_unstemmed | Molecular engineered conjugated polymer with high thermal conductivity |
title_short | Molecular engineered conjugated polymer with high thermal conductivity |
title_sort | molecular engineered conjugated polymer with high thermal conductivity |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5903882/ https://www.ncbi.nlm.nih.gov/pubmed/29670943 http://dx.doi.org/10.1126/sciadv.aar3031 |
work_keys_str_mv | AT xuyanfei molecularengineeredconjugatedpolymerwithhighthermalconductivity AT wangxiaoxue molecularengineeredconjugatedpolymerwithhighthermalconductivity AT zhoujiawei molecularengineeredconjugatedpolymerwithhighthermalconductivity AT songbai molecularengineeredconjugatedpolymerwithhighthermalconductivity AT jiangzhang molecularengineeredconjugatedpolymerwithhighthermalconductivity AT leeelizabethmy molecularengineeredconjugatedpolymerwithhighthermalconductivity AT hubermansamuel molecularengineeredconjugatedpolymerwithhighthermalconductivity AT gleasonkarenk molecularengineeredconjugatedpolymerwithhighthermalconductivity AT chengang molecularengineeredconjugatedpolymerwithhighthermalconductivity |