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dc.contributor.authorLee, Woochul
dc.contributor.authorLi, Huashan
dc.contributor.authorWong, Andrew B.
dc.contributor.authorZhang, Dandan
dc.contributor.authorLai, Minliang
dc.contributor.authorYu, Yi
dc.contributor.authorKong, Qiao
dc.contributor.authorLin, Elbert
dc.contributor.authorUrban, Jeffrey J.
dc.contributor.authorGrossman, Jeffrey C.
dc.contributor.authorYang, Peidong
dc.date.accessioned2018-03-19T20:15:21Z
dc.date.available2018-03-19T20:15:21Z
dc.date.issued2017-07
dc.date.submitted2017-05
dc.identifier.issn0027-8424
dc.identifier.issn1091-6490
dc.identifier.urihttp://hdl.handle.net/1721.1/114231
dc.description.abstractControlling the flow of thermal energy is crucial to numerous applications ranging from microelectronic devices to energy storage and energy conversion devices. Here, we report ultralow lattice thermal conductivities of solution-synthesized, single-crystalline all-inorganic halide perovskite nanowires composed of CsPbI[subscript 3] (0.45 ± 0.05 W·m[superscript −1] ·K[superscript −1]), CsPbBr[subscript 3] (0.42 ± 0.04 W·m[superscript −1] ·K [superscript −1]), and CsSnI[superscript 3] (0.38 ± 0.04 W·m[superscript −1] ·K[superscript −1]). We attribute this ultralow thermal conductivity to the cluster rattling mechanism, wherein strong optical–acoustic phonon scatterings are driven by a mixture of 0D/1D/2D collective motions. Remarkably, CsSnI[superscript 3] possesses a rare combination of ultralow thermal conductivity, high electrical conductivity (282 S·cm[superscript −1]), and high hole mobility (394 cm[superscript 2] ·V[superscript −1] ·s[superscript −1]). The unique thermal transport properties in all-inorganic halide perovskites hold promise for diverse applications such as phononic and thermoelectric devices. Furthermore, the insights obtained from this work suggest an opportunity to discover low thermal conductivity materials among unexplored inorganic crystals beyond caged and layered structures. Keywords: halide perovski, tethermal conductivity, thermal transport, nanowire, thermoelectricsen_US
dc.description.sponsorshipUnited States. Department of Energy. Division of Materials Sciences and Engineering (Contract DE-AC02-05-CH11231)en_US
dc.publisherProceedings of the National Academy of Sciencesen_US
dc.relation.isversionofhttp://dx.doi.org/10.1073/PNAS.1711744114en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourcePNASen_US
dc.titleUltralow thermal conductivity in all-inorganic halide perovskitesen_US
dc.typeArticleen_US
dc.identifier.citationLee, Woochul, Huashan Li, Andrew B. Wong, Dandan Zhang, Minliang Lai, Yi Yu, Qiao Kong, et al. “Ultralow Thermal Conductivity in All-Inorganic Halide Perovskites.” Proceedings of the National Academy of Sciences 114, no. 33 (July 31, 2017): 8693–8697. © 2017 National Academy of Sciencesen_US
dc.contributor.departmentMassachusetts Institute of Technology. Center for Materials Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Research Laboratory of Electronicsen_US
dc.contributor.mitauthorLi, Huashan
dc.contributor.mitauthorGrossman, Jeffrey C.
dc.relation.journalProceedings of the National Academy of Sciencesen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2018-02-21T13:46:46Z
dspace.orderedauthorsLee, Woochul; Li, Huashan; Wong, Andrew B.; Zhang, Dandan; Lai, Minliang; Yu, Yi; Kong, Qiao; Lin, Elbert; Urban, Jeffrey J.; Grossman, Jeffrey C.; Yang, Peidongen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0003-1281-2359
mit.licensePUBLISHER_POLICYen_US


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