Micro-scale 2D quasi-nanosheets formed by 0D nanocrystals: from single to multicomponent building blocks

被引：10

作者：

Chang, Yu ^{[1
]}

Xu, Meng ^{[1
]}

Huang, Liu ^{[1
]}

Pan, Rongrong ^{[1
]}

Liu, Jiajia ^{[1
]}

Liu, Jia ^{[1
]}

Rong, Hongpan ^{[1
]}

Chen, Wenxing ^{[1
]}

Zhang, Jiatao ^{[1
]}

机构：

[1] Beijing Inst Technol, Expt Ctr Adv Mat, Beijing Key Lab Construct Tailorable Adv Funct Ma, Sch Mat Sci & Engn, Beijing 100081, Peoples R China

来源：

SCIENCE CHINA-MATERIALS | 2020年 / 63卷 / 07期

基金：

中国国家自然科学基金;

关键词：

nanocrystals; self-assembly; plasmonic superstructures; 2D nanosheets; CORE-SHELL NANOCRYSTALS; AQUEOUS CATION-EXCHANGE; NANOPARTICLES; TRANSITION; NANORODS; DESIGN; CRYSTALLIZATION; SUPERSTRUCTURES; FABRICATION; ASSEMBLIES;

D O I：

10.1007/s40843-020-1295-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Self-assembly of colloidal nanocrystals (NCs) into large-scale superlattices with complex and controllable structures has attracted extensive attention due to their collective properties and promising device applications. Plasmonic NCs are very popular for long-range ordered superstructures by virtue of their collective nanogaps for electromagnetic field enhancement, in particular bulk-scale single-layer assembly. Large-area two-dimensional (2D) quasinanosheets (QNSs) composed of mono-component Au NCs or multi-component Au@ZnS core-shell hetero-nanocrystals (HNCs) were successfully prepared, via careful solvent evaporation-induced interfacial self-assembly. The entire self-assembly process was carried out on the liquid-air surface and mediated simply by tuning the operating temperatures and concentrations of the NCs. Specifically, monolayer and double-layer 2D QNSs in tens of micrometers scale with different stacking models were fabricated by precisely controlling the solvent evaporation rate and colloidal concentration.

引用

页码：1265 / 1271

页数：7

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