Solvent-Mediated Self-Assembly of Nanocube Superlattices

被引：123

作者：

Quan, Zewei ^{[1
,3
]}

Xu, Hongwu ^{[3
]}

Wang, Chenyu ^{[1
]}

Wen, Xiaodong ^{[4
]}

Wang, Yuxuan ^{[2
]}

Zhu, Jinlong ^{[5
]}

Li, Ruipeng ^{[7
]}

Sheehan, Chris J. ^{[6
]}

Wang, Zhongwu ^{[7
]}

Smilgies, Detlef-M. ^{[7
]}

Luo, Zhiping ^{[8
,9
]}

Fang, Jiye ^{[1
,2
]}

机构：

[1] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA

[2] SUNY Binghamton, Mat Sci & Engn Program, Binghamton, NY 13902 USA

[3] Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM 87545 USA

[4] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[5] Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA

[6] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA

[7] Cornell Univ, Wilson Lab, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA

[8] Fayetteville State Univ, Dept Chem & Phys, Fayetteville, NC 28301 USA

[9] Texas A&M Univ, Microscopy & Imaging Ctr, College Stn, TX 77843 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2014年 / 136卷 / 04期

基金：

美国国家卫生研究院; 美国国家科学基金会;

关键词：

CRYSTAL-STRUCTURES; PACKING DENSITY; NANOCRYSTALS; SUPERCRYSTALS; SYMMETRY; FORCES;

D O I：

10.1021/ja408250q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Self-organization of colloidal Pt nanocubes into two types of distinct ordered superlattices, simple-cubic and body-centered-tetragonal structures, has been achieved using a home-built setup. Detailed translational and orientational characteristics of these superstructures were determined using a transmission electron microscopy tomographic technique with 3D reconstruction analysis. The formation of these distinct superlattices is the result of a delicate choice of solvent (i.e., aliphatic hexane or aromatic toluene hydrocarbons), which serves as a dispersion medium to fine-tune the relative strengths of ligand ligand and ligand solvent interactions during the self-assembly process. This work provides important insights into the effects of ligand solvent interactions on superlattice formation from nonspherical nanoparticles.

引用

页码：1352 / 1359

页数：8

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