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Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab.
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High-Precision Tailored Polymer Molecular Weights for Specific Photovoltaic Applications through Ultrasound-Induced Simultaneous Physical and Chemical Events

Author(s)
Kim, SeoyoungOh, JiyeonPark, JeewonLee, ByongkyuMai, Thi Le HuyenSun, ZheJeong, SeonghunCho, YongjoonKim, WonjunYang, Changduk
Issued Date
2024-04
DOI
10.1002/anie.202401097
URI
https://scholarworks.unist.ac.kr/handle/201301/81611
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.63, no.15, pp.e202401097
Abstract
It is highly challenging to reproducibly prepare semiconducting polymers with targeted molecular weight tailored for next-generation photovoltaic applications. Once such an easily accessible methodology is established, which can not only contribute to overcome the current limitation of the statistically determined nature of semiconducting polymers, but also facilitate rapid incorporation into the broad synthetic chemists' toolbox. Here, we describe a simple yet robust ultrasonication-assisted Stille polymerization for accessing semiconducting polymers with high-precision tailored molecular weights (from low to ultrahigh molecular weight ranges) while mitigating their interbatch variations. We propose that ultrasound-induced simultaneous physical and chemical events enable precise control of the semiconducting polymers' molecular weights with high reproducibility to satisfy all the optical/electrical and morphological demands of diverse types of high-performance semiconducting polymer-based devices; as demonstrated in in-depth experimental screenings in applications of both organic and perovskite photovoltaics. We believe that this methodology provides a fast development of new and existing semiconducting polymers with the highest-level performances possible on various photovoltaic devices. Ultrasonication-assisted polymerization is useful method to reproducibly prepare semiconducting polymer with targeted molecular weight tailored for next-generation photovoltaic applications. We propose that ultrasound-induced simultaneous physical and chemical events enable precise control of the semiconducting polymers molecular weights with high reproducibility.+ image
Publisher
WILEY-V C H VERLAG GMBH
ISSN
1433-7851
Keyword (Author)
organic solar cellsperovskite solar cellsreproducibilitytailored molecular weightultrasonication
Keyword
CATALYST-TRANSFER POLYCONDENSATIONCONJUGATED POLYMEREFFICIENCYPERFORMANCECHEMISTRYMECHANISMSCISSION

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