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  5. Ordered Surface Structuring of Spherical Colloids with Binary Nanoparticle Superlattices
 
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Ordered Surface Structuring of Spherical Colloids with Binary Nanoparticle Superlattices

Author(s)
Meder, Fabian  
Thomas, Steffi S.  
Bollhorst, Tobias  
Dawson, Kenneth A.  
Uri
http://hdl.handle.net/10197/12163
Date Issued
2018-03-26
Date Available
2021-05-18T11:31:57Z
Abstract
Surface-patterning colloidal matter in the sub-10 nm regime generates exceptional functionality in biology and photonic and electronic materials. Techniques of artificially generating functional patterns in the small nanoscale advanced in a fascinating manner in the last several years. However, they remain often restricted to planar and noncolloidal substrates. Patterning colloidal matter in solution via bottom-up assembly of smaller subunits on larger core particles is highly challenging because it is necessary to force the subunits onto randomly moving objects. Consequently, the non-equilibrium conditions present during nanoparticle self-assembly are difficult to control to eventually achieve the desired material structures. Here, we describe the formation of surface patterns with intrinsic periodic repeats of 8.9 ± 0.9 nm and less on hard, amorphous colloidal core particles by assembling binary nanoparticle superlattices on the curved particle surface. The colloidal environment is preserved during the entire bottom-up crystallization of variable building blocks (here, monodispersed 5 nm Au and 2.4 nm Pd nanoparticles (NPs) and 230 nm SiO core particles) into AB -like, binary, and isotropic superlattice domains on the amorphous cores. The three-dimensional, bottom-up assembly technique is a new tool for patterning colloidal matter in the sub-10 nm surface regime for gaining access to multicomponent metamaterials for bionanoscience, photonics, and electronics. 2 13
Sponsorship
Irish Research Council
Science Foundation Ireland -- replace
Other Sponsorship
German Research Foundation (DFG)
Type of Material
Journal Article
Publisher
ACS
Journal
Nano Letters
Volume
18
Issue
4
Start Page
2511
End Page
2518
Copyright (Published Version)
2018 American Chemical Society
Subjects

Nanostructuring

Colloidal crystals

Surface functionaliza...

Entropy-driven format...

Nanocrystal superlatt...

Crystals

Microcapsules

DOI
10.1021/acs.nanolett.8b00173
Language
English
Status of Item
Peer reviewed
ISSN
1530-6984
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
File(s)
No Thumbnail Available
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Main text_Meder_Revised_Final_Unmarked.docx

Size

2.31 MB

Format

Unknown

Checksum (MD5)

dfc0fe0a646daaac9c9d3ced409e08bb

No Thumbnail Available
Name

Supporting Information_Meder_Revised2_unmarked.docx

Size

6.96 MB

Format

Unknown

Checksum (MD5)

9178cdbf0e925b4ee13f4420d2e645d7

Owning collection
Chemistry Research Collection
Mapped collections
Centre for Bionano Interactions (CBNI) Research Collection

Item descriptive metadata is released under a CC-0 (public domain) license: https://creativecommons.org/public-domain/cc0/.
All other content is subject to copyright.

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