The Critical Role of Electron–Donating Thiophene Groups on the Mechanical and Thermal Properties of Donor–Acceptor Semiconducting Polymers

Zhang, Song; Ocheje, Michael U.; Huang, Lifeng; Galuska, Luke; Cao, Zhiqiang; Luo, Shaochuan; Cheng, Yu‐Hsuan; Ehlenberg, Dakota; Goodman, Renée B.; Zhou, Dongshan; Liu, Yi; Chiu, Yu‐Cheng; Azoulay, Jason D.; Rondeau‐Gagné, Simon; Gu, Xiaodan

doi:10.1002/aelm.201800899

Title: The Critical Role of Electron–Donating Thiophene Groups on the Mechanical and Thermal Properties of Donor–Acceptor Semiconducting Polymers

Journal Article · Wed Mar 13 00:00:00 EDT 2019 · Advanced Electronic Materials

DOI:https://doi.org/10.1002/aelm.201800899· OSTI ID:1985339

Zhang, Song ^[1]; Ocheje, Michael U. ^[2]; Huang, Lifeng ^[1]; Galuska, Luke ^[1]; Cao, Zhiqiang ^[1]; Luo, Shaochuan ^[3]; Cheng, Yu‐Hsuan ^[4]; Ehlenberg, Dakota ^[1]; Goodman, Renée B. ^[2]; Zhou, Dongshan ^[3]; Liu, Yi ^[5]; Chiu, Yu‐Cheng ^[4]; Azoulay, Jason D. ^[1]; Rondeau‐Gagné, Simon ^[2];

^[1]

University of Southern Mississippi, Hattiesburg, MS (United States)
University of Windsor, Ontario (Canada)
Nanjing University (China)
National Taiwan University of Science and Technology, Taipei (Taiwan)
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Here, thin-film mechanical properties are investigated for diketopyrrolopyrrole (DPP)-based conjugated polymers with varying num- bers of isolated thiophene moieties and sizes of fused thiophene rings in the polymer backbone. Interestingly, it is found that these thiophene units act as an antiplasticizer, where more isolated thiophene rings or bigger fused rings result in an increased glass transition temperature (Tg) of the polymer backbone, and consequently elastic modulus of the respective DPP polymers. Detailed

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Research Organization:: University of Southern Mississippi, Hattiesburg, MS (United States); Univ. of Southern Mississippi, Hattiesburg, MS (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); Natural Sciences and Engineering Research Council of Canada (NSERC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division

Grant/Contract Number:: SC0019361; AC02‐76SF00515; AC02‐05CH11231; AC02-05CH11231; RGPIN-2017-06611; AC02-76SF00515

OSTI ID:: 1985339

Alternate ID(s):: OSTI ID: 1499211; OSTI ID: 1599395; OSTI ID: 1599798; OSTI ID: 1774743

Journal Information:: Advanced Electronic Materials, Vol. 5, Issue 5; ISSN 2199-160X

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 71 works

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conjugated polymers
conjugation linkers
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structure-property relationship
thermomechanical properties

Title: The Critical Role of Electron–Donating Thiophene Groups on the Mechanical and Thermal Properties of Donor–Acceptor Semiconducting Polymers

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