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  Controlling Nanoparticle Orientations in the Self-Assembly of Patchy Quantum Dot-Gold Heterostructural Nanocrystals

Zhu, H., Fan, Z., Yu, L., Wilson, M. A., Nagaoka, Y., Eggert, D., et al. (2019). Controlling Nanoparticle Orientations in the Self-Assembly of Patchy Quantum Dot-Gold Heterostructural Nanocrystals. Journal of the American Chemical Society, 141(14), 6013-6021. doi:10.1021/jacs.9b01033.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-8A5B-C Version Permalink: http://hdl.handle.net/21.11116/0000-0003-9203-4
Genre: Journal Article

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https://dx.doi.org/10.1021/jacs.9b01033 (Publisher version)
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 Creators:
Zhu, H.1, Author
Fan, Z.2, Author
Yu, L.3, Author
Wilson, M. A.2, Author
Nagaoka, Y.1, Author
Eggert, D.4, 5, Author              
Cao, C.1, Author
Liu, Y.6, Author
Wei, Z.7, Author
Wang, X.7, Author
He, J.7, Author
Zhao, J.7, Author
Li, R.8, Author
Wang, Z.9, Author
Grünwald, M.2, Author
Chen, O.1, Author
Affiliations:
1Department of Chemistry, Brown University, ou_persistent22              
2Department of Chemistry, University of Utah, ou_persistent22              
3Department of Material Science and Engineering, University of Florida, ou_persistent22              
4Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938288              
5Heinrich Petter Institute-Leibniz Institute for Experimental Virology, ou_persistent22              
6Center for Nanoscale Materials, Argonne National Laboratory, ou_persistent22              
7Department of Chemistry, University of Connecticut, ou_persistent22              
8National Synchrotron Light Source II, Brookhaven National Laboratory, ou_persistent22              
9Cornell High Energy Synchrotron Source, Cornell University, ou_persistent22              

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 Abstract: Self-assembly of nanocrystals is a promising route for creating macroscale materials that derive function from the properties of their nanoscale building blocks. While much progress has been made assembling nanocrystals into different superlattices, controlling the relative orientations of nanocrystals in those lattices remains a challenge. Here, we combine experiments with computer simulations to study the self-assembly of patchy heterostructural nanocrystals (HNCs), consisting of near-spherical quantum dots decorated with regular arrangements of small gold satellites, into close-packed superlattices with pronounced orientational alignment of HNCs. Our simulations indicate that the orientational alignment is caused by van der Waals interactions between gold patches and is sensitive to the interparticle distance in the superlattice. We demonstrate experimentally that the degree and type of orientational alignment can be controlled by changing ligand populations on HNCs. This study provides guidance for the design and fabrication of nanocrystal superlattices with enhanced structural control.

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Language(s): eng - English
 Dates: 2019-02-012019-03-192019-04-10
 Publication Status: Published in print
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1021/jacs.9b01033
 Degree: -

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Project name : O. C. acknowledges support from the National Science Foundation (OIA-1538893) and the Brown University Startup fund. The support and resources of the Center for High Performance Computing at the University of Utah are gratefully acknowledged. This work was performed, in part, at the Center for Nanoscale Materials, a U.S. Department of Energy Office of Science User Facility, and supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357. Z. F. and M. G. acknowledge support by the National Science Foundation under Grant No. DMR-1848499. CHESS is supported by National Science Foundataion award under DMR-1332208.
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Title: Journal of the American Chemical Society
  Other : J. Am. Chem. Soc.
  Abbreviation : JACS
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 141 (14) Sequence Number: - Start / End Page: 6013 - 6021 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870