Strain-Driven Stacking Faults in CdSe/CdS Core/Shell Nanorods

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dc.contributor.authorDemortière, Arnaud
dc.contributor.authorLeonard, Donovan N.
dc.contributor.authorPetkov, Valeri
dc.contributor.authorChapman, Karena
dc.contributor.authorChattopadhyay, Soma
dc.contributor.authorShe, Chunxing
dc.contributor.authorCullen, David A.
dc.contributor.authorShibata, Tomohiro
dc.contributor.authorPelton, Matthew
dc.contributor.authorShevchenko, Elena V.
dc.date.accessioned2022-06-07T17:25:59Z
dc.date.available2022-06-07T17:25:59Z
dc.date.issued2018-03-28
dc.description.abstractColloidal semiconductor nanocrystals are commonly grown with a shell of a second semiconductor material to obtain desired physical properties, such as increased photoluminescence quantum yield. However, the growth of a lattice-mismatched shell results in strain within the nanocrystal, and this strain has the potential to produce crystalline defects. Here, we study CdSe/CdS core/shell nanorods as a model system to investigate the influence of core size and shape on the formation of stacking faults in the nanocrystal. Using a combination of high-angle annular dark-field scanning transmission electron microscopy and pair-distribution-function analysis of synchrotron X-ray scattering, we show that growth of the CdS shell on smaller, spherical CdSe cores results in relatively small strain and few stacking faults. By contrast, growth of the shell on larger, prolate spheroidal cores leads to significant strain in the CdS lattice, resulting in a high density of stacking faults.en_US
dc.description.urihttps://pubs.acs.org/doi/10.1021/acs.jpclett.8b00914en_US
dc.format.extent7 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2dsxv-idj2
dc.identifier.citationDemortière, Arnaud at al. Strain-Driven Stacking Faults in CdSe/CdS Core/Shell Nanorods. The Journal of Physical Chemistry Letters 9 (Mar. 28, 2018), no. 8: 1900–1906. https://doi.org/10.1021/acs.jpclett.8b00914en_US
dc.identifier.urihttps://doi.org/10.1021/acs.jpclett.8b00914
dc.identifier.urihttp://hdl.handle.net/11603/24834
dc.language.isoen_USen_US
dc.publisherACSen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleStrain-Driven Stacking Faults in CdSe/CdS Core/Shell Nanorodsen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0002-6370-8765en_US

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