Details
| Original language | English |
|---|---|
| Pages (from-to) | 483-490 |
| Number of pages | 8 |
| Journal | Advanced functional materials |
| Volume | 23 |
| Issue number | 4 |
| Publication status | Published - 12 Sept 2012 |
| Externally published | Yes |
Abstract
A novel step-wise approach for fabrication of periodic arrays of two different types of nanoparticles (NPs), selectively localized at different block copolymer phases is demonstrated. In the first step, pre-synthesized ≈12 nm silver nanoparticles (AgNPs), stabilized with thiol-terminated polystyrene, are mixed with poly(styrene-block-vinylpyridine) (PS-b-PVP) block copolymer in a common solvent. After film casting and consequent solvent vapor annealing the AgNPs are selectively localized within the PS phase of the block copolymer matrix due to the interaction with PS shell of the nanoparticles. In the second step, ≈2-5 nm gold, platinum, or palladium nanoparticles are directly deposited from their aqueous dispersion on the PVP domains of the self-assembled block copolymer thin films. In such a way, thin films of nanostructured block copolymer with two types of nanoparticles, separated by the two distinct block copolymer phases, are prepared in a step-wise manner. The presented method is very simple and can be applied for various combinations of pre-synthesized nanoparticles where the characteristics of either type of nanoparticles are tuned accordingly in advance, which is more difficult to achieve for in situ synthesized nanoparticles.
Keywords
- block copolymers, dual nanomaterials patterning, nanoparticles, periodic arrays, self-assembly
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Advanced functional materials, Vol. 23, No. 4, 12.09.2012, p. 483-490.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A Step‐Wise Approach for Dual Nanoparticle Patterning via Block Copolymer Self‐Assembly
AU - Horechyy, Andriy
AU - Nandan, Bhanu
AU - Zafeiropoulos, Nikolaos E.
AU - Formanek, Petr
AU - Oertel, Ulrich
AU - Bigall, Nadja C.
AU - Eychmüller, Alexander
AU - Stamm, Manfred
PY - 2012/9/12
Y1 - 2012/9/12
N2 - A novel step-wise approach for fabrication of periodic arrays of two different types of nanoparticles (NPs), selectively localized at different block copolymer phases is demonstrated. In the first step, pre-synthesized ≈12 nm silver nanoparticles (AgNPs), stabilized with thiol-terminated polystyrene, are mixed with poly(styrene-block-vinylpyridine) (PS-b-PVP) block copolymer in a common solvent. After film casting and consequent solvent vapor annealing the AgNPs are selectively localized within the PS phase of the block copolymer matrix due to the interaction with PS shell of the nanoparticles. In the second step, ≈2-5 nm gold, platinum, or palladium nanoparticles are directly deposited from their aqueous dispersion on the PVP domains of the self-assembled block copolymer thin films. In such a way, thin films of nanostructured block copolymer with two types of nanoparticles, separated by the two distinct block copolymer phases, are prepared in a step-wise manner. The presented method is very simple and can be applied for various combinations of pre-synthesized nanoparticles where the characteristics of either type of nanoparticles are tuned accordingly in advance, which is more difficult to achieve for in situ synthesized nanoparticles.
AB - A novel step-wise approach for fabrication of periodic arrays of two different types of nanoparticles (NPs), selectively localized at different block copolymer phases is demonstrated. In the first step, pre-synthesized ≈12 nm silver nanoparticles (AgNPs), stabilized with thiol-terminated polystyrene, are mixed with poly(styrene-block-vinylpyridine) (PS-b-PVP) block copolymer in a common solvent. After film casting and consequent solvent vapor annealing the AgNPs are selectively localized within the PS phase of the block copolymer matrix due to the interaction with PS shell of the nanoparticles. In the second step, ≈2-5 nm gold, platinum, or palladium nanoparticles are directly deposited from their aqueous dispersion on the PVP domains of the self-assembled block copolymer thin films. In such a way, thin films of nanostructured block copolymer with two types of nanoparticles, separated by the two distinct block copolymer phases, are prepared in a step-wise manner. The presented method is very simple and can be applied for various combinations of pre-synthesized nanoparticles where the characteristics of either type of nanoparticles are tuned accordingly in advance, which is more difficult to achieve for in situ synthesized nanoparticles.
KW - block copolymers
KW - dual nanomaterials patterning
KW - nanoparticles
KW - periodic arrays
KW - self-assembly
UR - http://www.scopus.com/inward/record.url?scp=84872373195&partnerID=8YFLogxK
U2 - 10.1002/adfm.201201452
DO - 10.1002/adfm.201201452
M3 - Article
AN - SCOPUS:84872373195
VL - 23
SP - 483
EP - 490
JO - Advanced functional materials
JF - Advanced functional materials
SN - 1616-301X
IS - 4
ER -