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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 2547 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 2540 | - |
dc.citation.title | POLYMER CHEMISTRY | - |
dc.citation.volume | 5 | - |
dc.contributor.author | Dutta, Gitish K | - |
dc.contributor.author | Kim, Taehyo | - |
dc.contributor.author | Choi, Hyosung | - |
dc.contributor.author | Lee, Junghoon | - |
dc.contributor.author | Kim, Dong Suk | - |
dc.contributor.author | Kim, Jin Young | - |
dc.contributor.author | Yang, Changduk | - |
dc.date.accessioned | 2023-12-22T02:44:59Z | - |
dc.date.available | 2023-12-22T02:44:59Z | - |
dc.date.created | 2014-01-20 | - |
dc.date.issued | 2014-04 | - |
dc.description.abstract | In an attempt to further lower the HOMO of a cost-effective polymer poly(2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-dyl-alt-thiophene-2,5-diyl) (TQ) by adding F atoms onto the existing quinoxaline acceptor within the polymer backbone, we have synthesized two structurally identical fluorinated analogues of TQ (TQ-F (single F) and TQ-FF (double F)), except for the number of F atoms. The effects of inclusion of F atoms on the optical property, nature of charge transport, and molecular organization are thoroughly investigated. The resulting two fluorinated polymers show a decrease in both the HOMO and the LUMO energy levels relative to non-fluorinated TQ. Moreover, the fluorination of the polymer backbone has lowered the HOMOs more than the LUMOs, slightly widening the energy bandgaps as the number of F atoms increases. Thus, use of these polymers in bulk-heterojunction (BHJ) solar cells, in all cases, leads large VOC values. The power conversion efficiency (PCE) of the optimized PSCs based on TQ-F reaches 4.41%. In addition, it is interesting to note that, despite TQ-FF having the PCE that is lower than TQ-F, an unprecedentedly high VOC of 1.00 V is achieved, which is nearly equaled the highest VOC values ever reported for polymers. | - |
dc.identifier.bibliographicCitation | POLYMER CHEMISTRY, v.5, no.7, pp.2540 - 2547 | - |
dc.identifier.doi | 10.1039/C3PY01542D | - |
dc.identifier.issn | 1759-9954 | - |
dc.identifier.scopusid | 2-s2.0-84896775353 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/2677 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84896775353 | - |
dc.identifier.wosid | 000332477800041 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Synthesis of fluorinated analogues of a practical polymer TQ for improved open-circuit voltages in polymer solar cells | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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