A Top-Down Strategy to Engineer ActiveLayer Morphology for Highly Efficient and Stable All-Polymer Solar Cells
DC Field | Value | Language |
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dc.contributor.author | Fu, Huiting | - |
dc.contributor.author | Peng, Zhengxing | - |
dc.contributor.author | Fan, Qunping | - |
dc.contributor.author | Lin, Francis R. | - |
dc.contributor.author | Qi, Feng | - |
dc.contributor.author | Ran, Yixin | - |
dc.contributor.author | Wu, Ziang | - |
dc.contributor.author | Fan, Baobing | - |
dc.contributor.author | Jiang, Kui | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Lu, Guanghao | - |
dc.contributor.author | Ade, Harald | - |
dc.contributor.author | Jen, Alex K-Y | - |
dc.date.accessioned | 2022-09-24T02:41:04Z | - |
dc.date.available | 2022-09-24T02:41:04Z | - |
dc.date.created | 2022-09-23 | - |
dc.date.issued | 2022-08 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/143823 | - |
dc.description.abstract | A major challenge hindering the further development of all-polymer solar cells (all-PSCs) employing polymerized small-molecule acceptors is the relatively low fill factor (FF) due to the difficulty in controlling the active-layer morphology. The issues typically arise from oversized phase separation resulting from the thermodynamically unfavorable mixing between two macromolecular species, and disordered molecular orientation/packing of highly anisotropic polymer chains. Herein, a facile top-down controlling strategy to engineer the morphology of all-polymer blends is developed by leveraging the layer-by-layer (LBL) deposition. Optimal intermixing of polymer components can be achieved in the two-step process by tuning the bottom-layer polymer swelling during top-layer deposition. Consequently, both the molecular orientation/packing of the bottom layer and the molecular ordering of the top layer can be optimized with a suitable top-layer processing solvent. A favorable morphology with gradient vertical composition distribution for efficient charge transport and extraction is therefore realized, affording a high all-PSC efficiency of 17.0% with a FF of 76.1%. The derived devices also possess excellent long-term thermal stability and can retain >90% of their initial efficiencies after being annealed at 65 degrees C for 1300 h. These results validate the distinct advantages of employing an LBL processing protocol to fabricate high-performance all-PSCs. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | MOLECULAR-ORIENTATION | - |
dc.title | A Top-Down Strategy to Engineer ActiveLayer Morphology for Highly Efficient and Stable All-Polymer Solar Cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1002/adma.202202608 | - |
dc.identifier.scopusid | 2-s2.0-85134056801 | - |
dc.identifier.wosid | 000825875900001 | - |
dc.identifier.bibliographicCitation | ADVANCED MATERIALS, v.34, no.33 | - |
dc.relation.isPartOf | ADVANCED MATERIALS | - |
dc.citation.title | ADVANCED MATERIALS | - |
dc.citation.volume | 34 | - |
dc.citation.number | 33 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | MOLECULAR-ORIENTATION | - |
dc.subject.keywordAuthor | all-polymer solar cells | - |
dc.subject.keywordAuthor | blend morphology | - |
dc.subject.keywordAuthor | device stability | - |
dc.subject.keywordAuthor | layer-by-layer deposition | - |
dc.subject.keywordAuthor | power conversion efficiency | - |
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