DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Sang Woo | ko |
dc.contributor.author | Lee, Yu Jeong | ko |
dc.contributor.author | Lee, Young Woong | ko |
dc.contributor.author | Koh, Chang Woo | ko |
dc.contributor.author | Lee, Yeran | ko |
dc.contributor.author | Kim, Min Je | ko |
dc.contributor.author | Liao, Kin | ko |
dc.contributor.author | Cho, Jeong Ho | ko |
dc.contributor.author | Kim, Bumjoon J. | ko |
dc.contributor.author | Woo, Han Young | ko |
dc.date.accessioned | 2018-12-20T08:03:58Z | - |
dc.date.available | 2018-12-20T08:03:58Z | - |
dc.date.created | 2018-12-05 | - |
dc.date.created | 2018-12-05 | - |
dc.date.issued | 2018-11 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v.10, no.46, pp.39952 - 39961 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | http://hdl.handle.net/10203/248731 | - |
dc.description.abstract | In this study, we synthesized two acceptor-donor-acceptor (A-D-A)-type small molecules (SMs) (P3T4-VCN and P3T4-INCN) with different terminal end-groups (dicyanovinyl (VCN) and 2-methylene-3-(1,1-dicyanomethylene)indanone (INCN)) based on the 1,4-bis(thiophenylphenylthiophene)-2,5-difluorophenylene (P3T4) core that possesses high coplanarity because of intrachain noncovalent Coulombic interactions. We investigated the influence of terminal end-groups on intermolecular packing and the resulting electrical and photovoltaic characteristics. A small change in the end-group structure of the SMs induces a significant variation in the torsional structures, molecular packing, and pristine/blend film morphology. It is noteworthy that the less crystalline P3T4-INCN with tilted conformation is highly sensitive to post-treatments (i.e., additives and annealing) such that it permits facile morphological modulation. However, the highly planar and crystalline P3T4-VCN exhibits a strong tolerance toward processing treatments. After morphology optimization, the fullerene-based bulk-heterojunction solar cell of tilted P3T4-INCN exhibits a power conversion efficiency (PCE) of 5.68%, which is significantly superior to that of P3T4-VCN:PC71BM (PCE = 1.29%). Our results demonstrate the importance of the terminal end-group for the design of A-D-A-type SMs and their sensitivity toward the postprocessing treatments in optimizing their performance. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Impact of Terminal End-Group of Acceptor-Donor-Acceptor-type Small Molecules on Molecular Packing and Photovoltaic Properties | - |
dc.type | Article | - |
dc.identifier.wosid | 000451496000060 | - |
dc.identifier.scopusid | 2-s2.0-85056845518 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 46 | - |
dc.citation.beginningpage | 39952 | - |
dc.citation.endingpage | 39961 | - |
dc.citation.publicationname | ACS APPLIED MATERIALS & INTERFACES | - |
dc.identifier.doi | 10.1021/acsami.8b13928 | - |
dc.contributor.localauthor | Kim, Bumjoon J. | - |
dc.contributor.nonIdAuthor | Lee, Yu Jeong | - |
dc.contributor.nonIdAuthor | Lee, Young Woong | - |
dc.contributor.nonIdAuthor | Koh, Chang Woo | - |
dc.contributor.nonIdAuthor | Lee, Yeran | - |
dc.contributor.nonIdAuthor | Kim, Min Je | - |
dc.contributor.nonIdAuthor | Liao, Kin | - |
dc.contributor.nonIdAuthor | Cho, Jeong Ho | - |
dc.contributor.nonIdAuthor | Woo, Han Young | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | organic solar cell | - |
dc.subject.keywordAuthor | A-D-A structure | - |
dc.subject.keywordAuthor | Coulombic interaction | - |
dc.subject.keywordAuthor | molecular planarity | - |
dc.subject.keywordAuthor | post-treatment | - |
dc.subject.keywordPlus | ORGANIC SOLAR-CELLS | - |
dc.subject.keywordPlus | OPEN-CIRCUIT VOLTAGE | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | ALL-POLYMER | - |
dc.subject.keywordPlus | FULLERENE-POLYMER | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | RECOMBINATION | - |
dc.subject.keywordPlus | ORIENTATION | - |
dc.subject.keywordPlus | OLIGOMERS | - |
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