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dc.contributor.authorZhang, Xu
dc.contributor.authorMunir, Rahim
dc.contributor.authorXu, Zhuo
dc.contributor.authorLiu, Yucheng
dc.contributor.authorTsai, Hsinhan
dc.contributor.authorNie, Wanyi
dc.contributor.authorLi, Jianbo
dc.contributor.authorNiu, Tianqi
dc.contributor.authorSmilgies, Detlef-M.
dc.contributor.authorKanatzidis, Mercouri G.
dc.contributor.authorMohite, Aditya D.
dc.contributor.authorZhao, Kui
dc.contributor.authorAmassian, Aram
dc.contributor.authorLiu, Shengzhong (Frank)
dc.date.accessioned2018-04-10T08:38:13Z
dc.date.available2018-04-10T08:38:13Z
dc.date.issued2018-04-03
dc.identifier.citationZhang X, Munir R, Xu Z, Liu Y, Tsai H, et al. (2018) Phase Transition Control for High Performance Ruddlesden-Popper Perovskite Solar Cells. Advanced Materials: 1707166. Available: http://dx.doi.org/10.1002/adma.201707166.
dc.identifier.issn0935-9648
dc.identifier.pmid29611240
dc.identifier.doi10.1002/adma.201707166
dc.identifier.urihttp://hdl.handle.net/10754/627426
dc.description.abstractRuddlesden-Popper reduced-dimensional hybrid perovskite (RDP) semiconductors have attracted significant attention recently due to their promising stability and excellent optoelectronic properties. Here, the RDP crystallization mechanism in real time from liquid precursors to the solid film is investigated, and how the phase transition kinetics influences phase purity, quantum well orientation, and photovoltaic performance is revealed. An important template-induced nucleation and growth of the desired (BA)(MA)PbI phase, which is achieved only via direct crystallization without formation of intermediate phases, is observed. As such, the thermodynamically preferred perpendicular crystal orientation and high phase purity are obtained. At low temperature, the formation of intermediate phases, including PbI crystals and solvate complexes, slows down intercalation of ions and increases nucleation barrier, leading to formation of multiple RDP phases and orientation randomness. These insights enable to obtain high quality (BA)(MA)PbI films with preferentially perpendicular quantum well orientation, high phase purity, smooth film surface, and improved optoelectronic properties. The resulting devices exhibit high power conversion efficiency of 12.17%. This work should help guide the perovskite community to better control Ruddlesden-Popper perovskite structure and further improve optoelectronic and solar cell devices.
dc.description.sponsorshipX.Z., R.M., and Z.X. contributed equally to this work. This work was supported by the National Key Research and Development Program of China (2017YFA0204800, 2016YFA0202403), the National Natural Science Foundation of China (61604092, 61674098), the National University Research Fund (Grant Nos. GK261001009, GK201603055), the 111 Project (B14041), and the Chinese National 1000-talent-plan program (1110010341). GIWAXS measurements were performed at D-line in the Cornell High Energy Synchrotron Source (CHESS) and helped by the King Abdullah University of Science and Technology (KAUST). CHESS is supported by the NSF and the NIH/NIGMS via NSF award DMR-1332208.
dc.publisherWiley-Blackwell
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/full/10.1002/adma.201707166
dc.rightsThis is the peer reviewed version of the following article: Phase Transition Control for High Performance Ruddlesden-Popper Perovskite Solar Cells, which has been published in final form at http://doi.org/10.1002/adma.201707166. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
dc.subjectIn situ diagnostics
dc.subjectPhase transitions
dc.subjectRuddlesden-Popper perovskites
dc.subjectSolar cells
dc.subjectSolution processing
dc.titlePhase Transition Control for High Performance Ruddlesden-Popper Perovskite Solar Cells
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentMaterials Science and Engineering Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.identifier.journalAdvanced Materials
dc.eprint.versionPost-print
dc.contributor.institutionUniversity of Chinese Academy of Sciences; Beijing 100049 China
dc.contributor.institutionKey Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; School of Materials Science and Engineering; Shaanxi Normal University; Xi'an 710119 China
dc.contributor.institutionDalian National Laboratory for Clean Energy; iChEM; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
dc.contributor.institutionLos Alamos National Laboratory; Los Alamos NM 87545 USA
dc.contributor.institutionCornell High Energy Synchrotron Source; Cornell University; Ithaca NY 14850 USA
dc.contributor.institutionEngineering and Argonne-Northwestern Solar Energy Research (ANSER) Center; Northwestern University; Evanston IL 60208 USA
kaust.personMunir, Rahim
kaust.personAmassian, Aram


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