Synthesis and Characterization of Cyclopentadithiophene-Based Low Bandgap Copolymers Containing Electron-Deficient Benzoselenadiazole Derivatives for Photovoltaic Devices
DC Field | Value | Language |
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dc.contributor.author | Jung, In Hwan | - |
dc.contributor.author | Kim, Hoyeon | - |
dc.contributor.author | Park, Moo-Jin | - |
dc.contributor.author | Kim, Bongjun | - |
dc.contributor.author | Park, Jong-Hwa | - |
dc.contributor.author | Jeong, Eunjae | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Yoo, Seunghyup | - |
dc.contributor.author | Shim, Hong-Ku | - |
dc.date.accessioned | 2022-04-19T10:45:52Z | - |
dc.date.available | 2022-04-19T10:45:52Z | - |
dc.date.issued | 2010-03 | - |
dc.identifier.issn | 0887-624X | - |
dc.identifier.issn | 1099-0518 | - |
dc.identifier.uri | https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/147978 | - |
dc.description.abstract | We have synthesized two cyclopentadithiophene (CDT)-based low bandgap copolymers, poly[(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2,6-diyl)-alt-(benzo[c] [1,2,5]selenadiazole-4,7-diyl)] (PCBSe) and poly[(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2,6-diyl)-alt-(4,7- dithiophen-2-yl-benzo[c][1,2,5]selenadiazole-5,5'-diyl)] (PCT2BSe), for use in photovoltaic applications. Through the internal charge transfer interaction between the electron-donating CDT unit and the electron-accepting benzoselenadiazole, we realized exceedingly low bandgap polymers with bandgaps of 1.37-1.46 eV. The UV-vis absorption maxima of PCT2BSe were subjected to larger hypsochromic shifts than those of PCBSe, because of the distorted electron donor-acceptor (D-A) structures of the PCT2BSe backbone. These results were supported by the calculations of the D-A complex using the ab initio Hartree-Fock method with a split-valence 6-31G* basis set. However, PCT2BSe exhibited a better molar absorption coefficient in the visible region, which can lead to more efficient absorption of sunlight. As a result, PCT2BSe blended with [6,6]-phenyl-C-61-butyric acid methyl ester (PC61BM) exhibited a better photovoltaic performance than PCBSe because of the larger spectral overlap integral with respect to the solar spectru | - |
dc.format.extent | 10 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | JOHN WILEY & SONS INC | - |
dc.title | Synthesis and Characterization of Cyclopentadithiophene-Based Low Bandgap Copolymers Containing Electron-Deficient Benzoselenadiazole Derivatives for Photovoltaic Devices | - |
dc.type | Article | - |
dc.publisher.location | 독일 | - |
dc.identifier.doi | 10.1002/pola.23910 | - |
dc.identifier.scopusid | 2-s2.0-76649139461 | - |
dc.identifier.wosid | 000275385800021 | - |
dc.identifier.bibliographicCitation | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.48, no.6, pp 1423 - 1432 | - |
dc.citation.title | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | - |
dc.citation.volume | 48 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 1423 | - |
dc.citation.endPage | 1432 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/10.1002/pola.23910 | - |
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