Enhanced Fill Factor of Tandem Organic Solar Cells Incorporating a Diketopyrrolopyrrole-Based Low-Bandgap Polymer and Optimized Interlayer
DC Field | Value | Language |
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dc.contributor.author | Wang, Dong Hwan | - |
dc.contributor.author | Kyaw, Aung Ko Ko | - |
dc.contributor.author | Park, Jong Hyeok | - |
dc.date.available | 2019-03-08T18:01:34Z | - |
dc.date.issued | 2015-01 | - |
dc.identifier.issn | 1864-5631 | - |
dc.identifier.issn | 1864-564X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/10031 | - |
dc.description.abstract | We demonstrate that reproducible results can be obtained from tandem solar cells based on the wide-bandgap poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4,7-di-2-thienyl-2', 1', 3'-benzothiadiazole] (PCDTBT) and the diketopyrrolopyrrole (DPP)based narrow bandgap polymer (DT-PDPP2T-TT) with a decylte-tradecyl (DT) and an electron-rich 2,5-di-2-thienylthieno[3,2b] thiophene (2T-TT) group fabricated using an optimized interlayer (ZnO NPs/ph-n-PEDOT:PSS) [NPs: nanoparticles; ph-n: pH-neutral PEDOT: poly(3,4-ethylenedioxythiophene); PSS: polystyrene sulfonate]. The tandem cells are fabricated by applying a simple process without thermal annealing. The ZnO NP interlayer operates well when the ZnO NPs are dispersed in 2-methoxyethanol, as no precipitation and chemical reactions occur. In addition to the ZnO NP film, we used neutral PEDOT: PSS as a second interlayer which is not affect to the sequential deposited bulk heterojunction (BHJ) active layer of acidification. The power conversion efficiency (PCE) of a tandem device reaches 7.4% (open-circuit voltage V-OC = 1.53 V, short-circuit current density J(SC) = 7.3 mAcm(-2), and fill factor FF = 67%). Furthermore, FF is increased to up to 71% when another promising large bandgap (bandgap similar to 1.94 eV) polymer (PBnDT-FTAZ) is used. The surface of each layer with nanoscale morphology (BHJ1/ZnO NPs film/ph-n-PEDOT:PSS/BHJ2) was examined by means of AFM analysis during sequential processing. The combination of these factors, efficient DPP-based narrow bandgap material and optimized interlayer, leads to the high FF (average approaches 70%) and reproducibly operating tandem BHJ solar cells. | - |
dc.format.extent | 6 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Enhanced Fill Factor of Tandem Organic Solar Cells Incorporating a Diketopyrrolopyrrole-Based Low-Bandgap Polymer and Optimized Interlayer | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/cssc.201402833 | - |
dc.identifier.bibliographicCitation | CHEMSUSCHEM, v.8, no.2, pp 331 - 336 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000347843800016 | - |
dc.identifier.scopusid | 2-s2.0-84920883964 | - |
dc.citation.endPage | 336 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 331 | - |
dc.citation.title | CHEMSUSCHEM | - |
dc.citation.volume | 8 | - |
dc.type.docType | Article | - |
dc.publisher.location | 독일 | - |
dc.subject.keywordAuthor | bulk heterojunction | - |
dc.subject.keywordAuthor | interlayers | - |
dc.subject.keywordAuthor | morphology | - |
dc.subject.keywordAuthor | nanoparticles | - |
dc.subject.keywordAuthor | tandem solar cells | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | PROCESSING ADDITIVES | - |
dc.subject.keywordPlus | PHOTOVOLTAIC CELLS | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | BLENDS | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | JUNCTION | - |
dc.subject.keywordPlus | NETWORK | - |
dc.subject.keywordPlus | DEVICES | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Green & Sustainable Science & Technology | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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