Journal
NATURE NANOTECHNOLOGY
Volume 3, Issue 11, Pages 682-690Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nnano.2008.279
Keywords
-
Funding
- NYSTAR
- NSF CAREER award [0547330]
- Korea Research Foundation [04-03-05-2]
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [0547330] Funding Source: National Science Foundation
Ask authors/readers for more resources
Highly ordered arrays of nanoparticles exhibit many properties that are not found in their disordered counterparts. However, these nanoparticle superlattices usually form in a far-from-equilibrium dewetting process, which precludes the use of conventional patterning methods owing to a lack of control over the local dewetting dynamics. Here, we report a simple yet efficient approach for patterning such superlattices that involves moulding microdroplets containing the nanoparticles and spatially regulating their dewetting process. This approach can provide rational control over the local nucleation and growth of the nanoparticle superlattices. Using DNA-capped gold nanoparticles as a model system, we have patterned nanoparticle superlattices over large areas into a number of versatile structures with high degrees of internal order, including single-particle-width corrals, single-particle-thickness microdiscs and submicrometre-sized 'supra-crystals'. Remarkably, these features could be addressed by micropatterned electrode arrays, suggesting potential applications in bottom-up nanodevices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available