Growth of Nanocrystal Superlattices from Liquid Crystals

被引：3

作者：

Yang, Shengsong ^{[1
]}

Ning, Yifan ^{[1
]}

Zhang, Yugang ^{[2
]}

Murray, Christopher B. ^{[1
,3
]}

机构：

[1] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA

[2] Brookhaven Natl Labs, Ctr Funct Nanomat, Upton, NY 11973 USA

[3] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2024年 / 146卷 / 16期

关键词：

GOLD NANOPARTICLE; CRYSTALLIZATION; PARTICLES; TRANSPORT;

D O I：

10.1021/jacs.4c01232

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The growth of superlattices (SLs) made from self-assembled nanocrystals (NCs) is a powerful method for creating new materials and gaining insight into fundamental molecular dynamics. Previous explorations of NCSL syntheses have mostly compared them to crystallization. However, NCSL synthesis has not broadly shown cooling crystallization from saturated solutions as a reversible crystallization-dissolution process. We demonstrate the reversible growth of NCSLs by dispersing NCs in liquid crystal (LC) "smart solvents," and harnessing the transitions between the isotropic and nematic phases of the LCs. The growth mode and morphology can be tuned. This process is a model platform for studying crystallization and demonstrates great potential in manufacturing NCSLs as colloidal crystals through liquid-phase epitaxy or colloidal synthesis.

引用

页码：11043 / 11047

页数：5