Aqueous-Alcohol-Processable High-Mobility Semiconducting Copolymers with Engineered Oligo(ethylene glycol) Side Chains

Boseok Kang; Ziang Wu; Min Je Kim; Han Young Woo; Jeong Ho Cho

doi:10.1021/acs.chemmater.9b04004

Aqueous-Alcohol-Processable High-Mobility Semiconducting Copolymers with Engineered Oligo(ethylene glycol) Side Chains

Boseok Kang, Ziang Wu, Min Je Kim, Han Young Woo, Jeong Ho Cho

Department of Chemistry

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

21 Citations (Scopus)

Abstract

Replacement of toxic chlorinated solvents with eco- and human-friendly solvents is an important task for the successful implemention of next-generation polymer electronics technology. Herein, we designed and synthesized five aqueous-alcohol-processable conjugated copolymers by incorporating linear or branched oligo(ethylene glycol) side chains and systematically investigated their material and electronic properties. The resulting benzothiadiazole-based donor-acceptor alternating copolymers were well-soluble in both an ethanol/water mixed solvent and a chlorinated solvent, and their thin films showed distinct morphologies and crystalline characteristics that resulted from the self-assembling properties of the engineered side chains. Moreover, the copolymers showed excellent electrical characteristics with high hole mobilities of up to 0.1 cm² V^-1 s^-1, which is among the highest values reported thus far for polymer field-effect transistors processed using truly eco- and human-friendly solvents without the use of any surfactants. These results clearly demonstrate the immense potential of branched oligo(ethylene glycol) side chains for application in green electronics.

Original language	English
Pages (from-to)	1111-1119
Number of pages	9
Journal	Chemistry of Materials
Volume	32
Issue number	3
DOIs	https://doi.org/10.1021/acs.chemmater.9b04004
Publication status	Published - 2020 Feb 11

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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10.1021/acs.chemmater.9b04004

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title = "Aqueous-Alcohol-Processable High-Mobility Semiconducting Copolymers with Engineered Oligo(ethylene glycol) Side Chains",

abstract = "Replacement of toxic chlorinated solvents with eco- and human-friendly solvents is an important task for the successful implemention of next-generation polymer electronics technology. Herein, we designed and synthesized five aqueous-alcohol-processable conjugated copolymers by incorporating linear or branched oligo(ethylene glycol) side chains and systematically investigated their material and electronic properties. The resulting benzothiadiazole-based donor-acceptor alternating copolymers were well-soluble in both an ethanol/water mixed solvent and a chlorinated solvent, and their thin films showed distinct morphologies and crystalline characteristics that resulted from the self-assembling properties of the engineered side chains. Moreover, the copolymers showed excellent electrical characteristics with high hole mobilities of up to 0.1 cm2 V-1 s-1, which is among the highest values reported thus far for polymer field-effect transistors processed using truly eco- and human-friendly solvents without the use of any surfactants. These results clearly demonstrate the immense potential of branched oligo(ethylene glycol) side chains for application in green electronics.",

author = "Boseok Kang and Ziang Wu and Kim, {Min Je} and Woo, {Han Young} and Cho, {Jeong Ho}",

note = "Funding Information: This work was supported by a grant from the Creative Materials Discovery Program (NRF-2019M3D1A1078296) through the National Research Foundation (NRF) of Korea funded by the Ministry of Science and ICT, Korea and the Materials & Components Technology Development Program (20006537, Development of High Performance Insulation Materials for Flexible OLED Display TFT) funded by the Ministry of Trade, Industry & Energy (MOTIE), Korea. H.Y.W. acknowledges the financial support by the National Research Foundation (NRF) of Korea (2019R1A2C2085290, 2019R1A6A1A11044070). Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",

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AU - Cho, Jeong Ho

N1 - Funding Information: This work was supported by a grant from the Creative Materials Discovery Program (NRF-2019M3D1A1078296) through the National Research Foundation (NRF) of Korea funded by the Ministry of Science and ICT, Korea and the Materials & Components Technology Development Program (20006537, Development of High Performance Insulation Materials for Flexible OLED Display TFT) funded by the Ministry of Trade, Industry & Energy (MOTIE), Korea. H.Y.W. acknowledges the financial support by the National Research Foundation (NRF) of Korea (2019R1A2C2085290, 2019R1A6A1A11044070). Publisher Copyright: Copyright © 2019 American Chemical Society.

PY - 2020/2/11

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N2 - Replacement of toxic chlorinated solvents with eco- and human-friendly solvents is an important task for the successful implemention of next-generation polymer electronics technology. Herein, we designed and synthesized five aqueous-alcohol-processable conjugated copolymers by incorporating linear or branched oligo(ethylene glycol) side chains and systematically investigated their material and electronic properties. The resulting benzothiadiazole-based donor-acceptor alternating copolymers were well-soluble in both an ethanol/water mixed solvent and a chlorinated solvent, and their thin films showed distinct morphologies and crystalline characteristics that resulted from the self-assembling properties of the engineered side chains. Moreover, the copolymers showed excellent electrical characteristics with high hole mobilities of up to 0.1 cm2 V-1 s-1, which is among the highest values reported thus far for polymer field-effect transistors processed using truly eco- and human-friendly solvents without the use of any surfactants. These results clearly demonstrate the immense potential of branched oligo(ethylene glycol) side chains for application in green electronics.

AB - Replacement of toxic chlorinated solvents with eco- and human-friendly solvents is an important task for the successful implemention of next-generation polymer electronics technology. Herein, we designed and synthesized five aqueous-alcohol-processable conjugated copolymers by incorporating linear or branched oligo(ethylene glycol) side chains and systematically investigated their material and electronic properties. The resulting benzothiadiazole-based donor-acceptor alternating copolymers were well-soluble in both an ethanol/water mixed solvent and a chlorinated solvent, and their thin films showed distinct morphologies and crystalline characteristics that resulted from the self-assembling properties of the engineered side chains. Moreover, the copolymers showed excellent electrical characteristics with high hole mobilities of up to 0.1 cm2 V-1 s-1, which is among the highest values reported thus far for polymer field-effect transistors processed using truly eco- and human-friendly solvents without the use of any surfactants. These results clearly demonstrate the immense potential of branched oligo(ethylene glycol) side chains for application in green electronics.

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Aqueous-Alcohol-Processable High-Mobility Semiconducting Copolymers with Engineered Oligo(ethylene glycol) Side Chains

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