Effect of Fullerene Tris-adducts on the Photovoltaic Performance of P3HT:Fullerene Ternary Blends

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dc.contributor.authorKang, Hyunbumko
dc.contributor.authorKim, Ki-Hyunko
dc.contributor.authorKang, Tae Euiko
dc.contributor.authorCho, Chul-Heeko
dc.contributor.authorPark, Sunheeko
dc.contributor.authorYoon, Sung Cheolko
dc.contributor.authorKim, Bumjoonko
dc.date.accessioned2013-07-18T07:00:24Z-
dc.date.available2013-07-18T07:00:24Z-
dc.date.created2013-07-08-
dc.date.created2013-07-08-
dc.date.issued2013-05-
dc.identifier.citationACS APPLIED MATERIALS & INTERFACES, v.5, no.10, pp.4401 - 4408-
dc.identifier.issn1944-8244-
dc.identifier.urihttp://hdl.handle.net/10203/174045-
dc.description.abstractFullerene tris-adducts have the potential of achieving high open-circuit voltages (V-OC) in bulk heterojunction (BHJ) polymer solar cells (PSCs), because their lowest unoccupied molecular orbital (LUMO) level is higher than those of fullerene mono- and bis-adducts. However, no successful examples of the use of fullerene tris-adducts as electron acceptors have been reported. Herein, we developed a ternary-blend approach for the use of fullerene tris-adducts to fully exploit the merit of their high LUMO level. The compound o-xylenyl C-60 tris-adduct (OXCTA) was used as a ternary acceptor in the model system of poly(3-hexylthiophene) (P3HT) as the electron donor and the two soluble fullerene acceptors of OXCTA and fullerene monoadduct (o-xylenyl C-60 monoadduct (OXCMA), phenyl C-61-butyric acid methyl ester (PCBM), or indene-C-60 monoadduct (ICMA)). To explore the effect of OXCTA in ternary-blend PSC devices, the photovoltaic behavior of the device was investigated in terms of the weight fraction of OXCTA (W-OXCTA). When W-OXCTA is small (<0.3), OXCTA can generate a synergistic bridging effect between P3HT and the fullerene monoadduct, leading to simultaneous enhancement in both V-OC and short-circuit current (J(SC)). For example, the ternary PSC devices of P3HT:(OXCMA:OXCTA) with W-OXCTA of 0.1 and 0.3 exhibited power-conversion efficiencies (PCEs) of 3.91% and 3.96%, respectively, which were significantly higher than the 3.61% provided by the P3HT:OXCMA device. Interestingly, for W-OXCTA > 0.7, both V-OC and PCE of the ternary-blend PSCs exhibited nonlinear compositional dependence on W-OXCTA. We noted that the nonlinear compositional trend of P3HT:(OXCMA:OXCTA) was significantly different from that of P3HT:(OXCMA:o-xylenyl C-60 bis-adduct (OXCBA)) ternary-blend PSC devices. The fundamental reasons for the differences between the photovoltaic trends of the two different ternary-blend systems were investigated systemically by comparing their optical, electrical, and morphological properties.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.subjectPOLYMER SOLAR-CELLS-
dc.subjectOPEN-CIRCUIT VOLTAGE-
dc.subjectCONJUGATED POLYMERS-
dc.subjectCHARGE-TRANSPORT-
dc.subjectFILL FACTOR-
dc.subjectRECOMBINATION-
dc.subjectACCEPTOR-
dc.subjectEFFICIENCY-
dc.subjectDEVICES-
dc.subjectSENSITIZATION-
dc.titleEffect of Fullerene Tris-adducts on the Photovoltaic Performance of P3HT:Fullerene Ternary Blends-
dc.typeArticle-
dc.identifier.wosid000319551200057-
dc.identifier.scopusid2-s2.0-84878310525-
dc.type.rimsART-
dc.citation.volume5-
dc.citation.issue10-
dc.citation.beginningpage4401-
dc.citation.endingpage4408-
dc.citation.publicationnameACS APPLIED MATERIALS & INTERFACES-
dc.identifier.doi10.1021/am400695e-
dc.contributor.localauthorKim, Bumjoon-
dc.contributor.nonIdAuthorKang, Hyunbum-
dc.contributor.nonIdAuthorKim, Ki-Hyun-
dc.contributor.nonIdAuthorKang, Tae Eui-
dc.contributor.nonIdAuthorCho, Chul-Hee-
dc.contributor.nonIdAuthorPark, Sunhee-
dc.contributor.nonIdAuthorYoon, Sung Cheol-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorfullerene tris-adducts-
dc.subject.keywordAuthorternary-blend-
dc.subject.keywordAuthorpolymer solar cell-
dc.subject.keywordAuthorbridging effect-
dc.subject.keywordAuthortrap-assisted recombination-
dc.subject.keywordAuthorcharge trapping-
dc.subject.keywordPlusPOLYMER SOLAR-CELLS-
dc.subject.keywordPlusOPEN-CIRCUIT VOLTAGE-
dc.subject.keywordPlusCONJUGATED POLYMERS-
dc.subject.keywordPlusCHARGE-TRANSPORT-
dc.subject.keywordPlusFILL FACTOR-
dc.subject.keywordPlusRECOMBINATION-
dc.subject.keywordPlusACCEPTOR-
dc.subject.keywordPlusEFFICIENCY-
dc.subject.keywordPlusDEVICES-
dc.subject.keywordPlusSENSITIZATION-
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