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dc.contributor.authorReyes-Martinez, Marcos A.
dc.contributor.authorAbdelhady, Ahmed L.
dc.contributor.authorSaidaminov, Makhsud I.
dc.contributor.authorChung, Duck Young
dc.contributor.authorBakr, Osman
dc.contributor.authorKanatzidis, Mercouri G.
dc.contributor.authorSoboyejo, Wole O.
dc.contributor.authorLoo, Yueh-Lin
dc.date.accessioned2017-05-09T12:54:46Z
dc.date.available2017-05-09T12:54:46Z
dc.date.issued2017-05-02
dc.identifier.citationReyes-Martinez MA, Abdelhady AL, Saidaminov MI, Chung DY, Bakr OM, et al. (2017) Time-Dependent Mechanical Response of APbX3 (A = Cs, CH3NH3; X = I, Br) Single Crystals. Advanced Materials: 1606556. Available: http://dx.doi.org/10.1002/adma.201606556.
dc.identifier.issn0935-9648
dc.identifier.doi10.1002/adma.201606556
dc.identifier.urihttp://hdl.handle.net/10754/623454
dc.description.abstractThe ease of processing hybrid organic-inorganic perovskite (HOIPs) films, belonging to a material class with composition ABX3 , from solution and at mild temperatures promises their use in deformable technologies, including flexible photovoltaic devices, sensors, and displays. To successfully apply these materials in deformable devices, knowledge of their mechanical response to dynamic strain is necessary. The authors elucidate the time- and rate-dependent mechanical properties of HOIPs and an inorganic perovskite (IP) single crystal by measuring nanoindentation creep and stress relaxation. The observation of pop-in events and slip bands on the surface of the indented crystals demonstrate dislocation-mediated plastic deformation. The magnitudes of creep and relaxation of both HOIPs and IPs are similar, negating prior hypothesis that the presence of organic A-site cations alters the mechanical response of these materials. Moreover, these samples exhibit a pronounced increase in creep, and stress relaxation as a function of indentation rate whose magnitudes reflect differences in the rates of nucleation and propagation of dislocations within the crystal structures of HOIPs and IP. This contribution provides understanding that is critical for designing perovskite devices capable of withstanding mechanical deformations.
dc.description.sponsorshipThis research was supported by MAR's appointment to the Intelligence Community Postdoctoral Research Fellowship Program at Princeton University, administered by Oak Ridge Institute for Science and Education through an interagency agreement between the U.S. Department of Energy and the Office of the Director of National Intelligence. Y.-L.L. acknowledges the financial support from the National Science Foundation through grants ECCS-1549619 and CMMI-1537011. W.O.S. acknowledges the World Bank for financial support. Work at Argonne National Laboratory was supported by the U.S. Department of Energy (DOE), National Nuclear Security Administration, Office of Defense Nuclear Nonproliferation Research and Development under contract no. DE-AC02-06CH11357.
dc.publisherWiley
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/adma.201606556/full
dc.relation.urlhttps://rss.onlinelibrary.wiley.com/doi/am-pdf/10.1002/adma.201606556
dc.rightsThis is the peer reviewed version of the following article: Time-Dependent Mechanical Response of APbX3 (A = Cs, CH3 NH3 ; X = I, Br) Single Crystals, which has been published in final form at http://doi.org/10.1002/adma.201606556. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
dc.rightsThis file is an open access version redistributed from: https://rss.onlinelibrary.wiley.com/doi/am-pdf/10.1002/adma.201606556
dc.subjectSingle crystals
dc.subjectNanoindentation
dc.subjectViscoplasticity
dc.subjectHybrid Perovskites
dc.subjectDynamic Mechanical Behavior
dc.titleTime-Dependent Mechanical Response of APbX3 (A = Cs, CH3NH3; X = I, Br) Single Crystals
dc.typeArticle
dc.contributor.departmentFunctional Nanomaterials Lab (FuNL)
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalAdvanced Materials
dc.rights.embargodate2018-05-02
dc.eprint.versionPost-print
dc.contributor.institutionIntelligence Community Postdoctoral Research Fellowship Program; Department of Chemical and Biological Engineering; Princeton University; Princeton NJ 08544 USA
dc.contributor.institutionMaterials Science Division; Argonne National Laboratory; Argonne IL 60439 USA
dc.contributor.institutionDepartment of Chemistry; Northwestern University; Evanston IL 60208 USA
dc.contributor.institutionDepartment of Mechanical and Aerospace Engineering; Princeton University; Princeton NJ 08544 USA
dc.contributor.institutionDepartment of Chemical and Biological Engineering, and; Andlinger Center for Energy and the Environment; Princeton University; Princeton NJ 08544 USA
kaust.personAbdelhady, Ahmed L.
kaust.personSaidaminov, Makhsud I.
kaust.personBakr, Osman M.
refterms.dateFOA2020-09-22T13:20:31Z
dc.date.published-online2017-05-02
dc.date.published-print2017-06


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