Ordering in Polymer Micelle-Directed Assemblies of Colloidal Nanocrystals
- 18 November 2015
- journal article
- research article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 15 (12), 8240-8244
- https://doi.org/10.1021/acs.nanolett.5b03765
Abstract
Assembly of presynthesized nanocrystals by block copolymer micelles can be rationalized by the incorporation of nanocrystals into micellar coronas of constant width. As determined by quantitative analysis using small-angle X-ray scattering, high loading of small nanocrystals yields composites exhibiting order on two length scales, whereas intermediate loading of nanocrystals larger than the coronal width produces single nanocrystal networks. The resulting structures obey expectations of thermodynamically driven assembly on the nanocrystal length scale, whereas kinetically frozen packing principles dictate order on the polymer micelle length scale.Keywords
Funding Information
- Office of Energy Efficiency and Renewable Energy
- Basic Energy Sciences (DE-AC02-05CH11231)
- Welch Foundation (F-1848)
- Division of Graduate Education (DGE 1106400)
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