title: Self-Assembly of Shaped Nanoparticles into Free-Standing 2D and 3D Superlattices.
abstract: This article describes a novel supramolecular assembly-mediated strategy for the organization of Au nanoparticles (NPs) with different shapes (e.g., spheres, rods, and cubes) into large-area, free-standing 2D and 3D superlattices. This robust approach involves two major steps: (i) the organization of polymer-tethered NPs within the assemblies of supramolecular comblike block copolymers (CBCPs), and (ii) the disassembly of the assembled CBCP structures to produce free-standing NP superlattices. It is demonstrated that the crystal structures and lattice constants of the superlattices can be readily tailored by varying the molecular weight of tethered polymers, the volume fraction of NPs, and the matrix of CBCPs. This template-free approach may open a new avenue for the assembly of NPs into 2D and 3D structures with a wide range of potential applications.
authors.affiliation: Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USA.|Key Laboratory of Large-Format Battery Materials and System of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
authors.forename: Weikun
authors.initials: W
authors.lastname: Li
authors.affiliation: Key Laboratory of Large-Format Battery Materials and System of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Wang
authors.affiliation: Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USA.
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.affiliation: Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USA.
authors.forename: Jie
authors.initials: J
authors.lastname: He
authors.affiliation: Key Laboratory of Large-Format Battery Materials and System of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
authors.forename: Shaoyi
authors.initials: S
authors.lastname: Xu
authors.affiliation: Key Laboratory of Large-Format Battery Materials and System of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
authors.forename: Yonggui
authors.initials: Y
authors.lastname: Liao
authors.affiliation: Key Laboratory of Large-Format Battery Materials and System of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
authors.forename: Jintao
authors.initials: J
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Large-Format Battery Materials and System of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
authors.forename: Xiaolin
authors.initials: X
authors.lastname: Xie
authors.affiliation: Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USA.
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Nie
keywords: block copolymers; nanoparticles; self-assembly; superlattices; supramolecules