Enhanced performance and mechanical durability of a flexible solar cell from the dry transfer of PEDOT: PSS with polymer nanoparticles

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dc.contributor.authorLee, Jong Hwako
dc.contributor.authorKim, Young Yunko
dc.contributor.authorPark, O Okko
dc.date.accessioned2018-05-24T02:44:29Z-
dc.date.available2018-05-24T02:44:29Z-
dc.date.created2018-05-14-
dc.date.created2018-05-14-
dc.date.created2018-05-14-
dc.date.issued2018-04-
dc.identifier.citationJOURNAL OF MATERIALS CHEMISTRY C, v.6, no.15, pp.4106 - 4113-
dc.identifier.issn2050-7526-
dc.identifier.urihttp://hdl.handle.net/10203/242365-
dc.description.abstractStamping transfer has been considered as an alternative process for fabricating organic photovoltaic devices because of its various advantages such as a simple, flexible, and repeatable process, which is suitable for large-area fabrication. In this study, we fabricated organic flexible solar cells with enhanced cell performance and mechanical durability by performing a simple dry transfer of a poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) hole transport layer (HTL) with polystyrene nanoparticles (PS NPs). In order to ensure the stable flexibility of these flexible solar cells, cross-linked PS NPs synthesized with a size of 70 nm were introduced to the PEDOT:PSS HTL. The transfer of the PEDOT:PSS layer with PS NPs onto the polymer electrode (PH1000) was performed completely via stamping transfer with a polyurethane acrylate stamp. The power conversion efficiency of the PTB7:PC71BM-based flexible devices prepared by the transfer of PEDOT:PSS with PS NPs was 5.71%, which was higher than that of the spin-cast device without PS NPs (5.37%). The tuned morphology of the PEDOT:PSS achieved through transfer and the increased surface area of the PEDOT:PSS resulting from the corrugated structure provided by the protruding PS NPs improved the charge transport from the active layer to the PEDOT:PSS HTL. This in turn resulted in an enhanced short-circuit current density. In addition, the introduced PS NPs significantly improved the mechanical stability of these flexible devices, allowing the devices prepared by the transfer of PEDOT:PSS with PS NPs to tolerate more cycles of strain in the bending test. The introduced PS NPs enhanced the mechanical strength of PEDOT:PSS by acting as not only binders within PEDOT:PSS, but also as interfacial modifiers which can improve the interfacial adhesion between the active layer and PEDOT:PSS HTL. Thus, the transfer of a PEDOT:PSS layer with PS NPs will contribute to the long-term operation of flexible solar devices with enhanced device performance and mechanical durability.-
dc.languageEnglish-
dc.publisherROYAL SOC CHEMISTRY-
dc.subjectORGANIC PHOTOVOLTAIC CELLS-
dc.subjectLARGE-AREA-
dc.subjectTRANSPARENT ELECTRODES-
dc.subjectSTAMPING TRANSFER-
dc.subjectHIGH-EFFICIENCY-
dc.subject10-PERCENT EFFICIENCY-
dc.subjectACTIVE LAYER-
dc.subjectDEVICES-
dc.subjectSINGLE-
dc.subjectSTABILITY-
dc.titleEnhanced performance and mechanical durability of a flexible solar cell from the dry transfer of PEDOT: PSS with polymer nanoparticles-
dc.typeArticle-
dc.identifier.wosid000430538000034-
dc.identifier.scopusid2-s2.0-85045833900-
dc.type.rimsART-
dc.citation.volume6-
dc.citation.issue15-
dc.citation.beginningpage4106-
dc.citation.endingpage4113-
dc.citation.publicationnameJOURNAL OF MATERIALS CHEMISTRY C-
dc.identifier.doi10.1039/c8tc00502h-
dc.contributor.localauthorPark, O Ok-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusORGANIC PHOTOVOLTAIC CELLS-
dc.subject.keywordPlusLARGE-AREA-
dc.subject.keywordPlusTRANSPARENT ELECTRODES-
dc.subject.keywordPlusSTAMPING TRANSFER-
dc.subject.keywordPlusHIGH-EFFICIENCY-
dc.subject.keywordPlus10-PERCENT EFFICIENCY-
dc.subject.keywordPlusACTIVE LAYER-
dc.subject.keywordPlusDEVICES-
dc.subject.keywordPlusSINGLE-
dc.subject.keywordPlusSTABILITY-
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