Binary Superlattices of Gold Nanoparticles in Two Dimensions

dc.contributor.author Kim, Hyeong Jin
dc.contributor.author Wang, Wenjie
dc.contributor.author Zhang, Honghu
dc.contributor.author Freychet, Guillaume
dc.contributor.author Ocko, Benjamin M.
dc.contributor.author Travesset, Alex
dc.contributor.author Mallapragada, Surya
dc.contributor.author Vaknin, David
dc.contributor.department Department of Chemical and Biological Engineering
dc.contributor.department Department of Materials Science and Engineering
dc.contributor.department Ames National Laboratory
dc.contributor.department Neuroscience
dc.date.accessioned 2022-04-23T00:30:06Z
dc.date.available 2022-04-23T00:30:06Z
dc.date.issued 2022-04-12
dc.description.abstract We have created two-dimensional (2D) binary superlattices by cocrystallizing gold nanoparticles (AuNPs) of two distinct sizes into √3 × √3 and 2 × 2 complex binary superlattices, derived from the hexagonal structures of the single components. The building blocks of these binary systems are AuNPs that are functionalized with different chain lengths of poly(ethylene glycol) (PEG). The assembly of these functionalized NPs at the air–water interface is driven by the presence of salt, causing PEG-AuNPs to migrate to the aqueous surface and assemble into a crystalline lattice. We have used liquid surface X-ray reflectivity (XR) and grazing incidence small-angle X-ray scattering (GISAXS) to examine the assembly and crystallization at the liquid interface.
dc.description.comments This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in The Journal of Physical Chemistry Letters, copyright © 2022 American Chemical Society after peer review. To access the final edited and published work see DOI: 10.1021/acs.jpclett.2c00625. Posted with permission. DOE Contract Number(s): AC02-07CH11358; SC0012704.
dc.identifier.other 1868474
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/avVOl86r
dc.language.iso en
dc.publisher Iowa State University Digital Repository, Ames IA (United States)
dc.relation.ispartofseries IS-J 10807
dc.source.uri https://doi.org/10.1021/acs.jpclett.2c00625 *
dc.title Binary Superlattices of Gold Nanoparticles in Two Dimensions
dc.type article
dspace.entity.type Publication
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