Heterogeneous supersaturation in mixed perovskites

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dc.contributor.authorTan, Chih Shan
dc.contributor.authorHou, Yi
dc.contributor.authorSaidaminov, Makhsud I.
dc.contributor.authorProppe, Andrew
dc.contributor.authorHuang, Yu Sheng
dc.contributor.authorZhao, Yicheng
dc.contributor.authorWei, Mingyang
dc.contributor.authorWalters, Grant
dc.contributor.authorWang, Ziyun
dc.contributor.authorZhao, Yongbiao
dc.contributor.authorTodorovic, Petar
dc.contributor.authorKelley, Shana O.
dc.contributor.authorChen, Lih Juann
dc.contributor.authorSargent, Edward H.
dc.date.accessioned2020-06-23T00:12:51Z
dc.date.available2020-06-23T00:12:51Z
dc.date.copyright2020en_US
dc.date.issued2020
dc.description.abstractThin‐film solar cells based on hybrid lead halide perovskites have achieved certified power conversion efficiencies exceeding 24%, approaching those of crystalline silicon. This motivates deeper studies of the mechanisms that determine their performance. Twin defect sites have been proposed as a source of traps in perovskites, yet their origin and influence on photovoltaic performance remain unclear. It is found that twin defects—observed herein via both transmission electron microscopy and X‐ray diffraction—are correlated with the amount of antisolvent added to the perovskite and that twin defects in the highest‐performing perovskite photovoltaics are suppressed. Heterogeneous supersaturation nucleation is discussed as a contributor to efficient perovskite‐based optoelectronic devices.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThe authors thank the Ministry of Science and Technology of Taiwan for support of this research (MOST 106‐2917‐I‐564‐007 and MOST 107‐2221‐E‐007‐055‐MY3). This publication is based in part on work supported by the US Department of the Navy, Office of Naval Research (Grant Award No. N00014‐17‐1‐2524), the Ontario Research Fund – Research Excellence Program, and the Natural Sciences and Engineering Research Council (NSERC) of Canada. M.I.S. acknowledges the support of the Banting Postdoctoral Fellowship Program, administered by the Government of Canada.en_US
dc.identifier.citationTan, C. T., Hou, Y., Saidaminov, M. I., Proppe, A., Huang, Y. S., Zhao, Y., Wei, M., Walters, G., Wang, Z., Zhao, Y., Todorovic, P., Kelley, S. O., Chen, L. J., & Sargent, E. H. (2020). Heterogeneous Supersaturation in Mixed Perovskites. Advanced Science, 7(7), 1-6. https://doi.org/10.1002/advs.201903166.en_US
dc.identifier.urihttps://doi.org/10.1002/advs.201903166
dc.identifier.urihttp://hdl.handle.net/1828/11879
dc.language.isoenen_US
dc.publisherAdvanced Scienceen_US
dc.subjectdefects
dc.subjectperovskites
dc.subjecttraps
dc.subjecttwins
dc.subject.departmentDepartment of Chemistry
dc.subject.departmentDepartment of Electrical and Computer Engineering
dc.titleHeterogeneous supersaturation in mixed perovskitesen_US
dc.typeArticleen_US

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