{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360004233146578048.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1021/acsami.8b11049"}},{"identifier":{"@type":"URI","@value":"https://pubs.acs.org/doi/pdf/10.1021/acsami.8b11049"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Achieving High Efficiency in Solution-Processed Perovskite Solar Cells Using C<sub>60</sub>/C<sub>70</sub> Mixed Fullerenes"}],"description":[{"notation":[{"@value":"Fullerenes have attracted considerable interest as an electron-transporting layer in perovskite solar cells. Fullerene-based perovskite solar cells produce no hysteresis and do not require high-temperature annealing. However, high power conversion efficiency has been only achieved when the fullerene layer is thermally evaporated, which is an expensive process. In this work, the limitations of a solution-processed fullerene layer have been identified as high crystallinity and the presence of remnant solvents, in contrast to a thermally deposited C60 film, which has low crystallinity and no remaining solvents. As a solution to these problems, a mixed C60 and C70 solution-processed film, which exhibits low crystallinity, is proposed as an electron-transporting layer. The mixed-fullerene-based devices produce power conversion efficiencies as high as that of the thermally evaporated C60-based device (16.7%) owing to improved fill factor and open-circuit voltage. In addition, by vacuum-drying the mixed fulleren..."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004233146578056","@type":"Researcher","foaf:name":[{"@value":"Hao-Sheng Lin"}],"jpcoar:affiliationName":[{"@value":"Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1420282801193320832","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"00807563"},{"@type":"NRID","@value":"1000000807563"},{"@type":"NRID","@value":"9000413503658"},{"@type":"NRID","@value":"9000406327865"},{"@type":"NRID","@value":"9000406327872"}],"foaf:name":[{"@value":"Il Jeon"}],"jpcoar:affiliationName":[{"@value":"Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004233146578048","@type":"Researcher","foaf:name":[{"@value":"Rong Xiang"}],"jpcoar:affiliationName":[{"@value":"Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004233146578059","@type":"Researcher","foaf:name":[{"@value":"Seungju Seo"}],"jpcoar:affiliationName":[{"@value":"Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004233146578049","@type":"Researcher","foaf:name":[{"@value":"Jin-Wook Lee"}],"jpcoar:affiliationName":[{"@value":"Department of Mechanical Engineering, National University of Singapore, Block EA #07-08, 9 Engineering Drive 1, Singapore 117576, Singapore"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004233146578051","@type":"Researcher","foaf:name":[{"@value":"Chao Li"}],"jpcoar:affiliationName":[{"@value":"Department of Mechanical Engineering, National University of Singapore, Block EA #07-08, 9 Engineering Drive 1, Singapore 117576, Singapore"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004233146578052","@type":"Researcher","foaf:name":[{"@value":"Amrita Pal"}],"jpcoar:affiliationName":[{"@value":"Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004233146578054","@type":"Researcher","foaf:name":[{"@value":"Sergei Manzhos"}],"jpcoar:affiliationName":[{"@value":"Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004233146578053","@type":"Researcher","foaf:name":[{"@value":"Mark S. 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devices"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282256936596352","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"17H06609"},{"@type":"JGN","@value":"JP17H06609"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17H06609/"}],"notation":[{"@language":"ja","@value":"Highly Stable Carbon-sandwiched Perovskite Solar Cells"},{"@language":"en","@value":"Highly Stable Carbon-sandwiched Perovskite Solar Cells"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050846637596307968","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Highly Selective and Scalable Fullerene-Cation-Mediated Synthesis Accessing Cyclo[60]fullerenes with Five-Membered Carbon Ring and Their Application to Perovskite Solar Cells"}]},{"@id":"https://cir.nii.ac.jp/crid/1360002216610804736","@type":"Article","resourceType":"学術雑誌論文(journal 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