Novel wide-bandgap copolymer bearing alkylthio-thiophene-substituted benzodithiophene and methyl thiophene-3-carboxylate for highly stable fullerene-free simple polymer solar cells
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Su Hong | - |
dc.contributor.author | Park, Gi Eun | - |
dc.contributor.author | Choi, Suna | - |
dc.contributor.author | Park, Seo Yeon | - |
dc.contributor.author | Park, Chang Geun | - |
dc.contributor.author | Cho, Min Ju | - |
dc.contributor.author | Choi, Dong Hoon | - |
dc.date.accessioned | 2021-09-02T15:57:57Z | - |
dc.date.available | 2021-09-02T15:57:57Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-02 | - |
dc.identifier.issn | 1566-1199 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/77891 | - |
dc.description.abstract | We successfully synthesized a wide-bandgap p-type copolymer, 3MT-Th-S, bearing alkylthio-substituted benzodithiophene (BDT) as a donor and methyl-3-thiophenecarboxylate (3MT) as a weak electron acceptor. The electron affinity of the sulfur atom in the 2-ethylhexylthio side chains tethered to the thiophene units induces a low-lying highest occupied molecular orbital (HOMO) energy level in the corresponding polymer. 3MT-Th-S displays a strong absorption band from 400 to 600 nm, resulting in a relatively wide optical bandgap. Thin films of 3MT-Th-S exhibit a prominent face-on orientation in the out-of-plane profile, which might be a favorable orientation for moving charge carriers in the vertical direction in polymer solar cells (PSCs). Non-fullerene PSCs based on 3MT-Th-S as the donor and an n-type small molecule (ITIC, ITIC-Me, or IMIDT) were fabricated, and their performance was investigated in detail. Among the PSC devices bearing three different acceptors, the 3MTTh- S: ITIC-based PSC exhibits the highest power conversion efficiency of 7.86% with a high short-circuit current density of 16.11 mA cm(-2) and an open circuit voltage of 0.96 V. The high PCE values of PSC using the as-cast blend films of 3MT-Th-S and ITIC as an active layer without solvent additive are attributed to the low-lying HOMO level of the donor polymer, the complementary absorption behavior of the blend film, the face-on arrangement of polymer chains on the substrate, and the well-formed morphology of the binary blend film. These results clearly demonstrate that 3MT-Th-S is a promising wide-bandgap p-type polymer for high-performance fullerene-free simple PSCs. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | POWER CONVERSION EFFICIENCY | - |
dc.subject | ELECTRON-ACCEPTORS | - |
dc.subject | 2D-CONJUGATED POLYMER | - |
dc.subject | CONJUGATED POLYMER | - |
dc.subject | SIDE-CHAINS | - |
dc.subject | DONOR | - |
dc.subject | STABILITY | - |
dc.subject | DEVICES | - |
dc.title | Novel wide-bandgap copolymer bearing alkylthio-thiophene-substituted benzodithiophene and methyl thiophene-3-carboxylate for highly stable fullerene-free simple polymer solar cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Dong Hoon | - |
dc.identifier.doi | 10.1016/j.orgel.2017.11.031 | - |
dc.identifier.scopusid | 2-s2.0-85035765000 | - |
dc.identifier.wosid | 000418793500020 | - |
dc.identifier.bibliographicCitation | ORGANIC ELECTRONICS, v.53, pp.151 - 159 | - |
dc.relation.isPartOf | ORGANIC ELECTRONICS | - |
dc.citation.title | ORGANIC ELECTRONICS | - |
dc.citation.volume | 53 | - |
dc.citation.startPage | 151 | - |
dc.citation.endPage | 159 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | ELECTRON-ACCEPTORS | - |
dc.subject.keywordPlus | 2D-CONJUGATED POLYMER | - |
dc.subject.keywordPlus | CONJUGATED POLYMER | - |
dc.subject.keywordPlus | SIDE-CHAINS | - |
dc.subject.keywordPlus | DONOR | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | DEVICES | - |
dc.subject.keywordAuthor | Polymer solar cells | - |
dc.subject.keywordAuthor | Wide bandgap | - |
dc.subject.keywordAuthor | Non-fullerene solar cells | - |
dc.subject.keywordAuthor | Simple process | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.