Abstract
A simple, fast, and robust approach to colloidal assembly on patterned surfaces was developed. The approach involves the rapid settling and dewetting of suspensions of spherical colloids on lithographically templated surfaces. Using this method, we can quickly and easily fabricate close-packed colloidal crystal microarrays of both silica and polystyrene spheres that range in size from 500 nm to 4.5 μm. The microarrays tend to induce the formation of monolayer colloidal crystals, which can be interconnected and removed from the templates as free-standing colloidal crystal slabs. The same approach can also be used to assemble two-dimensional colloidal crystal superlattices that can adopt a variety of structures. Graphite, kagome, body-centered cubic, open hexagonal, tetragonal, and linear chain structures can all be quickly accessed by adjusting the ratio of the sphere diameter to the template diameter.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 7293-7297 |
| Number of pages | 5 |
| Journal | Langmuir |
| Volume | 20 |
| Issue number | 17 |
| DOIs | |
| State | Published - Aug 17 2004 |
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All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Colloid and Surface Chemistry
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Colloidal crystal microarrays and two-dimensional superstructures : A versatile approach for patterned surface assembly. / Schaak, Raymond Edward; Cable, Robert E.; Leonard, Brian M.; Norris, Brent C.
In: Langmuir, Vol. 20, No. 17, 17.08.2004, p. 7293-7297.Research output: Contribution to journal › Article
TY - JOUR
T1 - Colloidal crystal microarrays and two-dimensional superstructures
T2 - A versatile approach for patterned surface assembly
AU - Schaak, Raymond Edward
AU - Cable, Robert E.
AU - Leonard, Brian M.
AU - Norris, Brent C.
PY - 2004/8/17
Y1 - 2004/8/17
N2 - A simple, fast, and robust approach to colloidal assembly on patterned surfaces was developed. The approach involves the rapid settling and dewetting of suspensions of spherical colloids on lithographically templated surfaces. Using this method, we can quickly and easily fabricate close-packed colloidal crystal microarrays of both silica and polystyrene spheres that range in size from 500 nm to 4.5 μm. The microarrays tend to induce the formation of monolayer colloidal crystals, which can be interconnected and removed from the templates as free-standing colloidal crystal slabs. The same approach can also be used to assemble two-dimensional colloidal crystal superlattices that can adopt a variety of structures. Graphite, kagome, body-centered cubic, open hexagonal, tetragonal, and linear chain structures can all be quickly accessed by adjusting the ratio of the sphere diameter to the template diameter.
AB - A simple, fast, and robust approach to colloidal assembly on patterned surfaces was developed. The approach involves the rapid settling and dewetting of suspensions of spherical colloids on lithographically templated surfaces. Using this method, we can quickly and easily fabricate close-packed colloidal crystal microarrays of both silica and polystyrene spheres that range in size from 500 nm to 4.5 μm. The microarrays tend to induce the formation of monolayer colloidal crystals, which can be interconnected and removed from the templates as free-standing colloidal crystal slabs. The same approach can also be used to assemble two-dimensional colloidal crystal superlattices that can adopt a variety of structures. Graphite, kagome, body-centered cubic, open hexagonal, tetragonal, and linear chain structures can all be quickly accessed by adjusting the ratio of the sphere diameter to the template diameter.
UR - http://www.scopus.com/inward/record.url?scp=4344601152&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4344601152&partnerID=8YFLogxK
U2 - 10.1021/la049466b
DO - 10.1021/la049466b
M3 - Article
C2 - 15301517
AN - SCOPUS:4344601152
VL - 20
SP - 7293
EP - 7297
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 17
ER -