Journal
ACS NANO
Volume 13, Issue 6, Pages 6638-6646Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.9b00940
Keywords
inorganic nanoparticle array; block copolymers; self-assembly; flat emulsion droplet; soft confinement
Categories
Funding
- National Natural Science Foundation of China [51433009, 51703224, 21774126]
- Jilin Provincial science and technology development program [20190103119JH]
- Open Research Fund of State Key Lab of Polymer Physics & Chemistry, CIAC, CAS [2017-27]
- Program for HUST Academic Frontier Youth Team [2015-01]
- Hangzhou Normal University
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Precise control over the spatial arrangement of inorganic nanoparticles on a large scale is desirable for the design of functional nanomaterials, sensing, and optical/electronic devices. Although great progress has been recently made in controlling the organization of nanoparticles, there still remains a grand challenge to arrange nanoparticles into highly-ordered arrays over multiple length scales. Here, we report the directed arrangement of inorganic nanoparticles into arrayed structures with long-range order, up to tens of microns, by using hexagonally-packed cylindrical patterns of block copolymer nanosheets self-assembled within collapsed emulsion droplets as scaffolds. This technique can be used to generate nanoparticle arrays with various nanoparticle arrangements, including hexagonal honeycomb structures, periodic nanoring structures, and their combinations. This finding provides an effective route to fabricate diverse nanoparticle arrayed structures for the design of functional materials and devices.
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