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A high-spin ground-state donor-acceptor conjugated polymer

Interest in high-spin organic materials is driven by opportunities to enable far-reaching fundamental science and develop technologies that integrate light element spin, magnetic, and quantum functionalities. Although extensively studied, the intrinsic instability of these materials complicates synt...

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Autores principales: London, A. E., Chen, H., Sabuj, M. A., Tropp, J., Saghayezhian, M., Eedugurala, N., Zhang, B. A., Liu, Y., Gu, X., Wong, B. M., Rai, N., Bowman, M. K., Azoulay, J. D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534388/
https://www.ncbi.nlm.nih.gov/pubmed/31139745
http://dx.doi.org/10.1126/sciadv.aav2336
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author London, A. E.
Chen, H.
Sabuj, M. A.
Tropp, J.
Saghayezhian, M.
Eedugurala, N.
Zhang, B. A.
Liu, Y.
Gu, X.
Wong, B. M.
Rai, N.
Bowman, M. K.
Azoulay, J. D.
author_facet London, A. E.
Chen, H.
Sabuj, M. A.
Tropp, J.
Saghayezhian, M.
Eedugurala, N.
Zhang, B. A.
Liu, Y.
Gu, X.
Wong, B. M.
Rai, N.
Bowman, M. K.
Azoulay, J. D.
author_sort London, A. E.
collection PubMed
description Interest in high-spin organic materials is driven by opportunities to enable far-reaching fundamental science and develop technologies that integrate light element spin, magnetic, and quantum functionalities. Although extensively studied, the intrinsic instability of these materials complicates synthesis and precludes an understanding of how fundamental properties associated with the nature of the chemical bond and electron pairing in organic materials systems manifest in practical applications. Here, we demonstrate a conjugated polymer semiconductor, based on alternating cyclopentadithiophene and thiadiazoloquinoxaline units, that is a ground-state triplet in its neutral form. Electron paramagnetic resonance and magnetic susceptibility measurements are consistent with a high-to-low spin energy gap of 9.30 × 10(−3) kcal mol(−1). The strongly correlated electronic structure, very narrow bandgap, intramolecular ferromagnetic coupling, high electrical conductivity, solution processability, and robust stability open access to a broad variety of technologically relevant applications once thought of as beyond the current scope of organic semiconductors.
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spelling pubmed-65343882019-05-28 A high-spin ground-state donor-acceptor conjugated polymer London, A. E. Chen, H. Sabuj, M. A. Tropp, J. Saghayezhian, M. Eedugurala, N. Zhang, B. A. Liu, Y. Gu, X. Wong, B. M. Rai, N. Bowman, M. K. Azoulay, J. D. Sci Adv Research Articles Interest in high-spin organic materials is driven by opportunities to enable far-reaching fundamental science and develop technologies that integrate light element spin, magnetic, and quantum functionalities. Although extensively studied, the intrinsic instability of these materials complicates synthesis and precludes an understanding of how fundamental properties associated with the nature of the chemical bond and electron pairing in organic materials systems manifest in practical applications. Here, we demonstrate a conjugated polymer semiconductor, based on alternating cyclopentadithiophene and thiadiazoloquinoxaline units, that is a ground-state triplet in its neutral form. Electron paramagnetic resonance and magnetic susceptibility measurements are consistent with a high-to-low spin energy gap of 9.30 × 10(−3) kcal mol(−1). The strongly correlated electronic structure, very narrow bandgap, intramolecular ferromagnetic coupling, high electrical conductivity, solution processability, and robust stability open access to a broad variety of technologically relevant applications once thought of as beyond the current scope of organic semiconductors. American Association for the Advancement of Science 2019-05-24 /pmc/articles/PMC6534388/ /pubmed/31139745 http://dx.doi.org/10.1126/sciadv.aav2336 Text en Copyright © 2019 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
London, A. E.
Chen, H.
Sabuj, M. A.
Tropp, J.
Saghayezhian, M.
Eedugurala, N.
Zhang, B. A.
Liu, Y.
Gu, X.
Wong, B. M.
Rai, N.
Bowman, M. K.
Azoulay, J. D.
A high-spin ground-state donor-acceptor conjugated polymer
title A high-spin ground-state donor-acceptor conjugated polymer
title_full A high-spin ground-state donor-acceptor conjugated polymer
title_fullStr A high-spin ground-state donor-acceptor conjugated polymer
title_full_unstemmed A high-spin ground-state donor-acceptor conjugated polymer
title_short A high-spin ground-state donor-acceptor conjugated polymer
title_sort high-spin ground-state donor-acceptor conjugated polymer
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534388/
https://www.ncbi.nlm.nih.gov/pubmed/31139745
http://dx.doi.org/10.1126/sciadv.aav2336
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