DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yu Jin Kim | - |
dc.contributor.author | Jang, W | - |
dc.contributor.author | Sunyong Ahn | - |
dc.contributor.author | Park, CE | - |
dc.contributor.author | Dong Hwan Wang | - |
dc.date.accessioned | 2017-07-19T13:48:27Z | - |
dc.date.available | 2017-07-19T13:48:27Z | - |
dc.date.created | 2017-02-27 | - |
dc.date.issued | 2016-07 | - |
dc.identifier.issn | 1566-1199 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/37637 | - |
dc.description.abstract | The device performance of photovoltaics with a polymer: fullerene bulk heterojunction (BHJ) structure, consisting of DT-PDPP2T-TT donor polymer and poly(3-hexylthiophene):[6,6] phenyl-C-61-butyric acid methyl ester (PC61BM) acceptor compound, was investigated as a function of co-solvent composition. An enhancement of the photocurrent density and fill factor is observed in diodes made by spin-coating with chloroform mixed with ortho-dichlorobenzene, which allows a significantly higher device efficiency of 5.55% compared to diodes made from neat chloroform (efficiency = 3.61%). To clarify the role of the co-solvent, we investigated the nanoscale morphology with AFM, TEM and 2D-GIWAXS techniques and also the free-charge carrier mobility via space-charge limited current theory. We obtained the result that, under such supersaturated conditions, co-solvents induce increased polymer crystalline aggregation into a 3D phase structure and boost charge-carrier transport characteristics. This provides a rational basis for the development of ideally-controlled BHJ films that yield efficient DT-PDPP2T-TT:PCBM solar cells. Therefore, carefully selecting solvent mixtures provides an approach toward efficient low bandgap polymer solar cells. (C) 2016 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | Elsevier | - |
dc.relation.isPartOf | Organic Electronics | - |
dc.title | Dramatically enhanced performances and ideally controlled nano-mophology via co-solvent processing in low bandgap polymer solar cells | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/J.ORGEL.2016.04.010 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Organic Electronics, v.34, pp.42 - 49 | - |
dc.identifier.wosid | 000376457000008 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 49 | - |
dc.citation.startPage | 42 | - |
dc.citation.title | Organic Electronics | - |
dc.citation.volume | 34 | - |
dc.contributor.affiliatedAuthor | Park, CE | - |
dc.identifier.scopusid | 2-s2.0-84963706436 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 10 | - |
dc.description.scptc | 9 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | BLEND MORPHOLOGY | - |
dc.subject.keywordPlus | COPOLYMER | - |
dc.subject.keywordPlus | BINARY | - |
dc.subject.keywordAuthor | Bulk heterojunction solar cell | - |
dc.subject.keywordAuthor | Polymer solar cell | - |
dc.subject.keywordAuthor | Co-solvent | - |
dc.subject.keywordAuthor | Nanoscale morphology | - |
dc.subject.keywordAuthor | Phase separation | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
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