Binary and Ternary Superlattices Self-Assembled from Colloidal Nanodisks and Nanorods
- Authors
- Paik, Taejong; Diroll, Benjamin T.; Kagan, Cherie R.; Murray, Christopher B.
- Issue Date
- May-2015
- Publisher
- AMER CHEMICAL SOC
- Citation
- JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.137, no.20, pp 6662 - 6669
- Pages
- 8
- Journal Title
- JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
- Volume
- 137
- Number
- 20
- Start Page
- 6662
- End Page
- 6669
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/66732
- DOI
- 10.1021/jacs.5b03234
- ISSN
- 0002-7863
1520-5126
- Abstract
- Self-assembly of multicomponent anisotropic nanocrystals with controlled orientation and spatial distribution allows the design of novel metamaterials with unique shape- and orientation-dependent collective, properties. Although many phases of binary structures are theoretically proposed; the examples of multicomponent assemblies, which are experimentally realized with colloidal anisotropic nanocrystals, are still limited. In this report, we,demonstrate the formation of binary and ternary superlattices from colloidal two-dimensional. LaF3 nanodisks and One-dimensional CdSe/CdS nanorods via liquid interfacial assembly. The colloidal nanodisks and nanorods are coassembled into AB-, AB(2-), and AB(6)-type binary arrays determined, by their relative size ratio and concentration to maximize their packing density. :The position and orientation of anisotropic nanocrystal building blocks are tightly controlled in the self assembled binary and ternary lattices. The macroscopic orientation of the superlattices is further tuned by changing the liquid subphase used for self-assembly, resulting in the formation of lamellar-type binary liquid crystalline superlattices. In addition, we demonstrate a novel ternary superlattice self-assembled from two different sizes of nano disks and a nanorod, which offers the unique opportunity to design multifunctional metamaterials.
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