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dc.contributor.authorSingh, Mrigankaen_US
dc.contributor.authorNg, Annieen_US
dc.contributor.authorRen, Zhiweien_US
dc.contributor.authorHu, Hanlinen_US
dc.contributor.authorLin, Hong-Cheuen_US
dc.contributor.authorChu, Chih-Weien_US
dc.contributor.authorLi, Gangen_US
dc.date.accessioned2019-06-03T01:08:37Z-
dc.date.available2019-06-03T01:08:37Z-
dc.date.issued2019-06-01en_US
dc.identifier.issn2211-2855en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.nanoen.2019.03.044en_US
dc.identifier.urihttp://hdl.handle.net/11536/151985-
dc.description.abstractMetal oxide carrier transporting layers have been investigated widely in organic/inorganic lead halide perovskite solar cells (PSCs). Tin oxide (SnO2) is a promising alternative to the titanium dioxide commonly used in the electron transporting layer (ETL), due to its tunable carrier concentration, high electron mobility, amenability to low-temperature annealing processing, and large energy bandgap. In this study, a facile method was developed for the preparation of a room-temperature-processed SnO2 electron transporting material that provided a high-quality ETL, leading to PSCs displaying high power conversion efficiency (PCE) and stability. A novel physical ball milling method was first employed to prepare chemically pure ground SnO2 nanoparticles (G-SnO2), and a sol-gel process was used to prepare a compact SnO2 (C-SnO2) layer. The effects of various types of ETLs (C-SnO2, G-SnO2, composite G-SnO2/C-SnO2) on the performance of the PSCs are investigated. The composite SnO2 nanostructure formed a robust ETL having efficient carrier transport properties; accordingly, carrier recombination between the ETL and mixed perovskite was inhibited. PSCs incorporating C-SnO2, G-SnO2, and GSnO(2)/C-SnO2 as ETLs provided PCEs of 16.46, 17.92, and 21.09%, respectively. In addition to their high efficiency, the devices featuring the composite SnO2 (G-SnO2/C-SnO2) nanostructures possessed excellent long-term stability-they maintained 89% (with encapsulation) and 83% (without encapsulation) of their initial PCEs after 105 days ( > 2500 h) and 60 days ( > 1400 h), respectively, when stored under dry ambient air (20 +/- 5 RH %).en_US
dc.language.isoen_USen_US
dc.subjectBall-millingen_US
dc.subjectTin oxideen_US
dc.subjectElectron transport layeren_US
dc.subjectComposite nanostructureen_US
dc.subjectPerovskite solar cellsen_US
dc.titleFacile synthesis of composite tin oxide nanostructures for high-performance planar perovskite solar cellsen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.nanoen.2019.03.044en_US
dc.identifier.journalNANO ENERGYen_US
dc.citation.volume60en_US
dc.citation.spage275en_US
dc.citation.epage284en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000467774100032en_US
dc.citation.woscount0en_US
Appears in Collections:Articles