Campus Units
Chemical and Biological Engineering, Materials Science and Engineering, Physics and Astronomy, Neuroscience, Ames Laboratory
Document Type
Article
Research Focus Area
Advanced and Nanostructured Materials
Publication Version
Accepted Manuscript
Publication Date
2018
Journal or Book Title
Journal of Physical Chemistry C
DOI
10.1021/acs.jpcc.8b09647
Abstract
Controlled self-assembly of nanoparticles into ordered structures is a major step in fabricating nanotechnology based devices. Here, we report on the self-assembly of high quality superlattices of nanoparticles in aqueous suspensions induced via interpolymer complexation. Using small angle X-ray scattering, we demonstrate that the NPs crystallize into superlattices of FCC symmetry, initially driven by hydrogen bonding and subsequently by van der Waals forces between the complexed coronas of hydrogen-bonded polymers. We show that the lattice constant and crystal quality can be tuned by polymer concentration, suspension pH and the length of polymer chains. Interpolymer complexation to assemble nanoparticles is scalable, inexpensive, versatile and general.
Copyright Owner
American Chemical Society
Copyright Date
2018
Language
en
File Format
application/pdf
Recommended Citation
Nayak, Srikanth; Horst, Nathan; Zhang, Honghu; Wang, Wenjie; Mallapragada, Surya; Travesset, Alex; and Vaknin, David, "Interpolymer Complexation as a Strategy for Nanoparticle Assembly and Crystallization" (2018). Chemical and Biological Engineering Publications. 353.
https://lib.dr.iastate.edu/cbe_pubs/353
Included in
Chemical Engineering Commons, Nanoscience and Nanotechnology Commons, Physical Chemistry Commons, Physics Commons, Polymer and Organic Materials Commons
Comments
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see DOI: 10.1021/acs.jpcc.8b09647. Posted with permission.