Dithienosilole-: Co -5-fluoro-2,1,3-benzothiadiazole-containing regioisomeric polymers for organic field-effect transistors

So Huei Kang; Junghoon Lee; Dahyeon Yoo; Byoung Hoon Lee; Changduk Yang

doi:10.1039/c9tc02414j

Dithienosilole-: Co -5-fluoro-2,1,3-benzothiadiazole-containing regioisomeric polymers for organic field-effect transistors

So Huei Kang, Junghoon Lee, Dahyeon Yoo, Byoung Hoon Lee, Changduk Yang

Department of Chemical Engineering & Materials Science

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Three regioisomeric polymers (P1, P2, and P3) comprising dithienosilole and asymmetric 5-fluoro-2,1,3-benzothiadiazole moieties are synthesized and characterized. Although all the polymers exhibit similar energy levels, they show different molecular orientation, crystallinity, and charge-carrier transporting characteristics. A superior hole mobility (0.021 cm² V^-1 s^-1) is demonstrated for an organic field-effect transistor (OFET) based on P3 with the geometrical same direction of the F atoms, which is much higher than the regiorandom (P1) and regioregular (P2) isomers. Our study reveals that the specific regio-orientation of the asymmetric units rather than the regioregularity in the backbone plays a crucial role in determining the polymer nature, bulk morphology, and OFET performance.

Original language	English
Pages (from-to)	8522-8526
Number of pages	5
Journal	Journal of Materials Chemistry C
Volume	7
Issue number	28
DOIs	https://doi.org/10.1039/c9tc02414j
State	Published - 2019

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2018R1A2A1A05077194), Center for Advanced Soft-Electronics funded by the Ministry of Science and ICT as Global Frontier Project (2012M3A6A5055225), Wearable platform Materials Technology Center (2016R1A5A1009926) funded by the Ministry of Science, ICT and Future Planning, and the Research Project funded by Ulsan City (1.190099) of UNIST (Ulsan National Institute of Science & Technology). B. H. L. acknowledges the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2019R1C1C1010426) and J. L. acknowledges the National Research Foundation of Korea (NRF) grant funded by the Korea government (2017R1A6A3A11035549). The GIXD experiment at the PLS-II 6D UNIST-PAL beamline was supported in part by MEST, POSTECH and UNIST-UCRF.

Publisher Copyright:
© The Royal Society of Chemistry 2019.

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title = "Dithienosilole-: Co -5-fluoro-2,1,3-benzothiadiazole-containing regioisomeric polymers for organic field-effect transistors",

abstract = "Three regioisomeric polymers (P1, P2, and P3) comprising dithienosilole and asymmetric 5-fluoro-2,1,3-benzothiadiazole moieties are synthesized and characterized. Although all the polymers exhibit similar energy levels, they show different molecular orientation, crystallinity, and charge-carrier transporting characteristics. A superior hole mobility (0.021 cm2 V-1 s-1) is demonstrated for an organic field-effect transistor (OFET) based on P3 with the geometrical same direction of the F atoms, which is much higher than the regiorandom (P1) and regioregular (P2) isomers. Our study reveals that the specific regio-orientation of the asymmetric units rather than the regioregularity in the backbone plays a crucial role in determining the polymer nature, bulk morphology, and OFET performance.",

author = "Kang, {So Huei} and Junghoon Lee and Dahyeon Yoo and Lee, {Byoung Hoon} and Changduk Yang",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2018R1A2A1A05077194), Center for Advanced Soft-Electronics funded by the Ministry of Science and ICT as Global Frontier Project (2012M3A6A5055225), Wearable platform Materials Technology Center (2016R1A5A1009926) funded by the Ministry of Science, ICT and Future Planning, and the Research Project funded by Ulsan City (1.190099) of UNIST (Ulsan National Institute of Science & Technology). B. H. L. acknowledges the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2019R1C1C1010426) and J. L. acknowledges the National Research Foundation of Korea (NRF) grant funded by the Korea government (2017R1A6A3A11035549). The GIXD experiment at the PLS-II 6D UNIST-PAL beamline was supported in part by MEST, POSTECH and UNIST-UCRF. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2019.",

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AU - Lee, Junghoon

AU - Yoo, Dahyeon

AU - Lee, Byoung Hoon

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PY - 2019

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N2 - Three regioisomeric polymers (P1, P2, and P3) comprising dithienosilole and asymmetric 5-fluoro-2,1,3-benzothiadiazole moieties are synthesized and characterized. Although all the polymers exhibit similar energy levels, they show different molecular orientation, crystallinity, and charge-carrier transporting characteristics. A superior hole mobility (0.021 cm2 V-1 s-1) is demonstrated for an organic field-effect transistor (OFET) based on P3 with the geometrical same direction of the F atoms, which is much higher than the regiorandom (P1) and regioregular (P2) isomers. Our study reveals that the specific regio-orientation of the asymmetric units rather than the regioregularity in the backbone plays a crucial role in determining the polymer nature, bulk morphology, and OFET performance.

AB - Three regioisomeric polymers (P1, P2, and P3) comprising dithienosilole and asymmetric 5-fluoro-2,1,3-benzothiadiazole moieties are synthesized and characterized. Although all the polymers exhibit similar energy levels, they show different molecular orientation, crystallinity, and charge-carrier transporting characteristics. A superior hole mobility (0.021 cm2 V-1 s-1) is demonstrated for an organic field-effect transistor (OFET) based on P3 with the geometrical same direction of the F atoms, which is much higher than the regiorandom (P1) and regioregular (P2) isomers. Our study reveals that the specific regio-orientation of the asymmetric units rather than the regioregularity in the backbone plays a crucial role in determining the polymer nature, bulk morphology, and OFET performance.

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Dithienosilole-: Co -5-fluoro-2,1,3-benzothiadiazole-containing regioisomeric polymers for organic field-effect transistors

Abstract

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