Correlation between Phase-Separated Domain Sizes of Active Layer and Photovoltaic Performances in All-Polymer Solar Cells
DC Field | Value | Language |
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dc.contributor.author | Lee, Changyeon | - |
dc.contributor.author | Li, Yuxiang | - |
dc.contributor.author | Lee, Wonho | - |
dc.contributor.author | Lee, Youngmin | - |
dc.contributor.author | Choi, Joonhyeong | - |
dc.contributor.author | Kim, Taesu | - |
dc.contributor.author | Wang, Cheng | - |
dc.contributor.author | Gomez, Enrique D. | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Kim, Bumjoon J. | - |
dc.date.accessioned | 2021-09-03T21:50:42Z | - |
dc.date.available | 2021-09-03T21:50:42Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2016-07-26 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/88035 | - |
dc.description.abstract | The control of the bulk-heterojunction (BHJ) morphology in polymer/polymer blends remains a critical hurdle for optimizing all-polymer solar cells (all-PSCs). The relationship between donor/acceptor phase separation, domain size, and the resulting photovoltaic characteristics of PDFQx3T and P(NDI2OD-T2)-based all-PSCs was investigated. We varied the film-processing solvents (chloroform, chlorobenzene, o-dichlorobenzene, and p-xylene), thereby manipulating the phase separation of all-polymer blends with the domain size in the range of 30-300 nm. The different volatility and solubility of the solvents strongly influenced the aggregation of the polymers and the BHJ morphology of polymer blends. Domain sizes of all-polymer blends were closely correlated with the short-circuit current density (J(SC)) of the devices, while the open-circuit voltage (0.80 V) and fill factor (0.60) were unaffected. All-PSCs with the smallest domain size of similar to 30 nm in the active layer (using chloroform), which is commensurate with the domain size of highly efficient polymer/fullerene solar cells, had the highest J(SC) and power conversion efficiency of 5.11% due to large interfacial areas and efficient exciton separation. Our results suggest that the BHJ morphology was not fully optimized for most of the previous high-performance all-PSC systems, and their photovoltaic performance can be further improved by fine-engineering the film morphology, i.e., domain size, domain purity, and polymer packing structure. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | POWER CONVERSION EFFICIENCY | - |
dc.subject | MOLECULAR-ORIENTATION | - |
dc.subject | ELECTRON-TRANSPORT | - |
dc.subject | ADDITIVE-FREE | - |
dc.subject | ACCEPTOR | - |
dc.subject | AGGREGATION | - |
dc.subject | MORPHOLOGY | - |
dc.subject | MOBILITY | - |
dc.subject | DONOR | - |
dc.subject | CRYSTALLINITY | - |
dc.title | Correlation between Phase-Separated Domain Sizes of Active Layer and Photovoltaic Performances in All-Polymer Solar Cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1021/acs.macromol.6b01069 | - |
dc.identifier.scopusid | 2-s2.0-84979902072 | - |
dc.identifier.wosid | 000380576900006 | - |
dc.identifier.bibliographicCitation | MACROMOLECULES, v.49, no.14, pp.5051 - 5058 | - |
dc.relation.isPartOf | MACROMOLECULES | - |
dc.citation.title | MACROMOLECULES | - |
dc.citation.volume | 49 | - |
dc.citation.number | 14 | - |
dc.citation.startPage | 5051 | - |
dc.citation.endPage | 5058 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | MOLECULAR-ORIENTATION | - |
dc.subject.keywordPlus | ELECTRON-TRANSPORT | - |
dc.subject.keywordPlus | ADDITIVE-FREE | - |
dc.subject.keywordPlus | ACCEPTOR | - |
dc.subject.keywordPlus | AGGREGATION | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | MOBILITY | - |
dc.subject.keywordPlus | DONOR | - |
dc.subject.keywordPlus | CRYSTALLINITY | - |
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