Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이병훈 | * |
dc.date.accessioned | 2022-03-31T16:31:30Z | - |
dc.date.available | 2022-03-31T16:31:30Z | - |
dc.date.issued | 2022 | * |
dc.identifier.issn | 1022-1336 | * |
dc.identifier.other | OAK-31207 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/261095 | - |
dc.description.abstract | The effect of atomic substitution on the optoelectronic properties of a coplanar donor–acceptor (D–A) semiconducting polymer (SPs), prepared using cyclopentadithiophene (CDT) and 2,1,3-benzothiadiazole (BT) moieties, is investigated. By substituting a carbon atom in the BT unit with C-F or C–Cl, two random D–A SPs are prepared, and their optoelectronic properties are thoroughly investigated. Density functional theory calculations demonstrate that the fluorinated polymer has a slightly smaller dihedral angle (ϴ = 0.6°) than the pristine polymer (ϴ = 1.9°) in its lowest-energy conformation, implying efficient charge transport through the coplanar backbone of the fluorinated polymer. However, the chlorinated polymer shows the lowest energy at a relatively larger dihedral angle (ϴ = 139°) due to the steric hindrance induced by bulky chlorine atoms in the backbone, thereby leading to thin-film morphology, which is unfavorable for charge transport. Consequently, the fluorinated polymer yields the highest field-effect mobility (μ) of 0.57 cm2 V−1 s−1, slightly higher than that of the pristine polymer (μ = 0.33 cm2 V−1 s−1), and the extended device lifetime of organic field-effect transistors over 12 d without any encapsulation layers. The results of this study provide design guidelines for air-stable D–A SPs. © 2021 Wiley-VCH GmbH | * |
dc.language | English | * |
dc.publisher | John Wiley and Sons Inc | * |
dc.subject | chlorination | * |
dc.subject | fluorination | * |
dc.subject | organic field-effect transistors | * |
dc.subject | semiconducting polymers | * |
dc.subject | steric hindrance | * |
dc.title | Effect of Bulky Atom Substitution on Backbone Coplanarity and Electrical Properties of Cyclopentadithiophene-Based Semiconducting Polymers | * |
dc.type | Article | * |
dc.relation.issue | 4 | * |
dc.relation.volume | 43 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | Macromolecular Rapid Communications | * |
dc.identifier.doi | 10.1002/marc.202100709 | * |
dc.identifier.scopusid | 2-s2.0-85119999085 | * |
dc.author.google | Park S. | * |
dc.author.google | Kim Y. | * |
dc.author.google | Choi C. | * |
dc.author.google | Ahn H. | * |
dc.author.google | Park T. | * |
dc.author.google | Lee S.H. | * |
dc.author.google | Jang Y.H. | * |
dc.author.google | Lee B.H. | * |
dc.contributor.scopusid | 이병훈(57001618200) | * |
dc.date.modifydate | 20240322131001 | * |