Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals

被引：19

作者：

Wang, Yi ^{[1
]}

Chen, Jun ^{[1
]}

Li, Ruipeng ^{[2
]}

Gotz, Alexander ^{[3
,4
]}

Drobek, Dominik ^{[3
,4
]}

Przybilla, Thomas ^{[3
,4
]}

Hubner, Sabine ^{[3
,4
]}

Pelz, Philipp ^{[3
,4
]}

Yang, Lin ^{[2
]}

Apeleo Zubiri, Benjamin ^{[3
,4
]}

Spiecker, Erdmann ^{[3
,4
]}

Engel, Michael ^{[5
]}

Ye, Xingchen ^{[1
]}

机构：

[1] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA

[2] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA

[3] Friedrich Alexander Univ Erlangen Nurnberg, Inst Micro & Nanostruct Res IMN, D-91058 Erlangen, Germany

[4] Friedrich Alexander Univ Erlangen Nurnberg, Ctr Nanoanal & Electron Microscopy CENEM, IZNF, D-91058 Erlangen, Germany

[5] Inst Multiscale Simulat, IZNF, Friedrich Alexander Univ, D-91058 Erlangen, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2023年 / 145卷 / 32期

基金：

美国国家卫生研究院; 美国国家科学基金会;

关键词：

NANOCRYSTAL SUPERLATTICES; DENSEST PACKINGS; IN-SITU; TETRAHEDRA; RECONSTRUCTION; PHASES; FAMILY;

D O I：

10.1021/jacs.3c05299

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The self-assembly of shape-anisotropic nanocrystals intolarge-scalestructures is a versatile and scalable approach to creating multifunctionalmaterials. The tetrahedral geometry is ubiquitous in natural and manmadematerials, yet regular tetrahedra present a formidable challenge inunderstanding their self-assembly behavior as they do not tile space.Here, we report diverse supracrystals from gold nanotetrahedra includingthe quasicrystal (QC) and the dimer packing predicted more than adecade ago and hitherto unknown phases. We solve the complex three-dimensional(3D) structure of the QC by a combination of electron microscopy,tomography, and synchrotron X-ray scattering. Nanotetrahedron vertexsharpness, surface ligands, and assembly conditions work in concertto regulate supracrystal structure. We also discover that the surfacecurvature of supracrystals can induce structural changes of the QCtiling and eventually, for small supracrystals with high curvature,stabilize a hexagonal approximant. Our findings bridge the gap betweencomputational design and experimental realization of soft matter assembliesand demonstrate the importance of accurate control over nanocrystalattributes and the assembly conditions to realize increasingly complexnanopolyhedron supracrystals.

引用

页码：17902 / 17911

页数：10

共 47 条

[1] Collective topo-epitaxy in the self-assembly of a 3D quantum dot superlattice [J].