Staff View: Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions

Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions

Molecular doping is an effective approach to tune the charge density and optimize electrical performance of conjugated polymers. However, the introduction of dopants, on the other hand, may disturb the polymer microstructure and disrupt the charge transport path, often leading to a decrease of charg...

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Main Authors:	Kim, Jongho, Guo, Jing, Sini, Gjergji, Sorensen, Michael Korning, Andreasen, Jens Wenzel, Woon, Kai Lin, Coropceanu, Veaceslav, Paleti, Sri Harish Kumar, Wei, Huan, Peralta, Sebastien, Mallouki, Mohamed, Muller, Christian, Hu, Yuanyuan, Bui, Thanh-Tuan, Wang, Suhao
Format:	Article
Published:	ELSEVIER 2023
Subjects:	QC Physics
Online Access:	http://eprints.um.edu.my/38438/
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spelling	my.um.eprints.384382024-05-16T23:48:32Z http://eprints.um.edu.my/38438/ Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions Kim, Jongho Guo, Jing Sini, Gjergji Sorensen, Michael Korning Andreasen, Jens Wenzel Woon, Kai Lin Coropceanu, Veaceslav Paleti, Sri Harish Kumar Wei, Huan Peralta, Sebastien Mallouki, Mohamed Muller, Christian Hu, Yuanyuan Bui, Thanh-Tuan Wang, Suhao QC Physics Molecular doping is an effective approach to tune the charge density and optimize electrical performance of conjugated polymers. However, the introduction of dopants, on the other hand, may disturb the polymer microstructure and disrupt the charge transport path, often leading to a decrease of charge carrier mobility and deterioration of electrical conductivity of the doped films. Here we show that dopant-induced disorder can be overcome by rational engineering of polymer-dopant interactions, resulting in remarkable enhancement of electrical conductivity. Benchmark poly(3-hexylthiophene) (P3HT) and its analogous random polymers of 3-hexylthiophene and thiophene P(3HT)1-x-stat-(T)x] were synthesized and doped by 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ). Remarkably, random P(3HT)1-x-stat-(T)x] was doped to a far superior electrical conductivity, that in the case of x >= 0.24, the conductivity of P(3HT)1-x-stat-(T)x] is over 100 times higher than that of the doped P3HT, despite both P3HT and P(3HT)1-x-stat-(T)x] exhibit comparable charge carrier mobility in their pristine state and in spite of their practically identical redox properties. This result can be traced back to the formation of is-stacked polymer-dopant-polymer co-crystals exhibiting extremely short packing distances of 3.13-3.15 angstrom. The mechanism behind these performances is based on a new role played by the dopant molecules that we name ``bridging-gluing''. The results are coherently verified by the com-bination of optical absorption spectroscopy, X-ray diffraction, density functional theory calculations, and molecular dynamics simulations.(c) 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). ELSEVIER 2023-06 Article PeerReviewed Kim, Jongho and Guo, Jing and Sini, Gjergji and Sorensen, Michael Korning and Andreasen, Jens Wenzel and Woon, Kai Lin and Coropceanu, Veaceslav and Paleti, Sri Harish Kumar and Wei, Huan and Peralta, Sebastien and Mallouki, Mohamed and Muller, Christian and Hu, Yuanyuan and Bui, Thanh-Tuan and Wang, Suhao (2023) Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions. MATERIALS TODAY ADVANCES, 18. ISSN 2590-0498, DOI https://doi.org/10.1016/j.mtadv.2023.100360 <https://doi.org/10.1016/j.mtadv.2023.100360>. 10.1016/j.mtadv.2023.100360
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	QC Physics
spellingShingle	QC Physics Kim, Jongho Guo, Jing Sini, Gjergji Sorensen, Michael Korning Andreasen, Jens Wenzel Woon, Kai Lin Coropceanu, Veaceslav Paleti, Sri Harish Kumar Wei, Huan Peralta, Sebastien Mallouki, Mohamed Muller, Christian Hu, Yuanyuan Bui, Thanh-Tuan Wang, Suhao Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions
description	Molecular doping is an effective approach to tune the charge density and optimize electrical performance of conjugated polymers. However, the introduction of dopants, on the other hand, may disturb the polymer microstructure and disrupt the charge transport path, often leading to a decrease of charge carrier mobility and deterioration of electrical conductivity of the doped films. Here we show that dopant-induced disorder can be overcome by rational engineering of polymer-dopant interactions, resulting in remarkable enhancement of electrical conductivity. Benchmark poly(3-hexylthiophene) (P3HT) and its analogous random polymers of 3-hexylthiophene and thiophene P(3HT)1-x-stat-(T)x] were synthesized and doped by 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ). Remarkably, random P(3HT)1-x-stat-(T)x] was doped to a far superior electrical conductivity, that in the case of x >= 0.24, the conductivity of P(3HT)1-x-stat-(T)x] is over 100 times higher than that of the doped P3HT, despite both P3HT and P(3HT)1-x-stat-(T)x] exhibit comparable charge carrier mobility in their pristine state and in spite of their practically identical redox properties. This result can be traced back to the formation of is-stacked polymer-dopant-polymer co-crystals exhibiting extremely short packing distances of 3.13-3.15 angstrom. The mechanism behind these performances is based on a new role played by the dopant molecules that we name ``bridging-gluing''. The results are coherently verified by the com-bination of optical absorption spectroscopy, X-ray diffraction, density functional theory calculations, and molecular dynamics simulations.(c) 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
format	Article
author	Kim, Jongho Guo, Jing Sini, Gjergji Sorensen, Michael Korning Andreasen, Jens Wenzel Woon, Kai Lin Coropceanu, Veaceslav Paleti, Sri Harish Kumar Wei, Huan Peralta, Sebastien Mallouki, Mohamed Muller, Christian Hu, Yuanyuan Bui, Thanh-Tuan Wang, Suhao
author_facet	Kim, Jongho Guo, Jing Sini, Gjergji Sorensen, Michael Korning Andreasen, Jens Wenzel Woon, Kai Lin Coropceanu, Veaceslav Paleti, Sri Harish Kumar Wei, Huan Peralta, Sebastien Mallouki, Mohamed Muller, Christian Hu, Yuanyuan Bui, Thanh-Tuan Wang, Suhao
author_sort	Kim, Jongho
title	Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions
title_short	Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions
title_full	Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions
title_fullStr	Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions
title_full_unstemmed	Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions
title_sort	remarkable conductivity enhancement in p-doped polythiophenes via rational engineering of polymer-dopant interactions
publisher	ELSEVIER
publishDate	2023
url	http://eprints.um.edu.my/38438/
_version_	1800082903248404480
score	13.211869

Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactions

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