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Ordered Particle Arrays via a Langmuir Transfer Process : Access to Any Two-Dimensional Bravais Lattice

Title data

Hummel, Miriam ; Stelling, Christian ; Kopera, Bernd ; Nutz, Fabian A. ; Karg, Matthias ; Retsch, Markus ; Förster, Stephan:
Ordered Particle Arrays via a Langmuir Transfer Process : Access to Any Two-Dimensional Bravais Lattice.
In: Langmuir. (2018) .
ISSN 1520-5827
DOI: https://doi.org/10.1021/acs.langmuir.8b03047

Official URL: Volltext

Project information

Project financing: VolkswagenStiftung

Abstract in another language

We demonstrate how to directly transform a close-packed hexagonal colloidal monolayer into non-close packed particle arrays of any two-dimensional symmetry at the air/water interface. This major advancement in the field of nanoparticle self-assembly is based on a simple one-dimensional stretching step in combination with the particle array orientation. Our method goes far beyond existing strategies and allows access to all possible 2D Bravais lattices. A key element of our work is the possibility to macroscopically stretch a particle array in a truly one-dimensional manner, which has not been possible up to now. We achieve this by stretching the nanoparticle array at an air/water interface during the transfer process. The degree of stretching is simply controlled by the wettability of the transfer substrate. To retain the symmetry of the transferred structure, the capillary forces upon drying have to be circumvented. We demonstrate two concepts based on thermal fixation for this. It allows for the first time to fabricate non-close packed, non-hexagonal colloidal monolayers on a macroscopic length scale.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry I > Lehrstuhl Physikalische Chemie I - Univ.-Prof. Dr. Markus Retsch
Profile Fields > Advanced Fields > Polymer and Colloid Science
Research Institutions > Research Centres > Bayreuth Institute of Macromolecular Research - BIMF
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Research Institutions > Collaborative Research Centers, Research Unit
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 09 Jan 2019 09:40
Last Modified: 09 Jan 2019 10:49
URI: https://eref.uni-bayreuth.de/id/eprint/46840