Formation of Thick, Large-Area Nanoparticle Superlatices in Lithographically Defined Geometries

Journal Article · Wed Mar 31 04:00:00 EDT 2010 · Nano letters

DOI:https://doi.org/10.1021/nl100129t· OSTI ID:1041159

Akey, A; Yang, L; Lu, C; Herman, I P

Superlattices of colloidal nanocrystals hold the promise of new nanomaterials with tunable properties. The positioning and size of these structures are often poorly controlled after self-assembly from the solution phase, making studies of their properties difficult. We report the fabrication of {approx}100 layer thick, three-dimensional superlattices on a substrate with controlled lateral placement. This novel fabrication technique generates long-range order over the micrometer scale and controlled placement by employing lithographic patterning and microfluidic flow. Keywords: Nanoparticles; superlattice; self assembly; microfluidics; ordered array.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY (BNL)
• Sponsoring Organization: USDOE SC OFFICE OF SCIENCE (SC)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1041159
• Report Number(s): BNL--91348-2010-JA; KC0401030
• Journal Information: Nano letters, Journal Name: Nano letters Journal Issue: 4 Vol. 10; ISSN 1530-6984
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
FABRICATION
POSITIONING
SUBSTRATES
SUPERLATTICES