Details
| Original language | English |
|---|---|
| Pages (from-to) | 2805-2811 |
| Number of pages | 7 |
| Journal | Advanced functional materials |
| Volume | 19 |
| Issue number | 17 |
| Publication status | Published - 1 Sept 2009 |
| Externally published | Yes |
Abstract
Here, a novel and simple route to fabricate highly dense arrays of palladium nanodots and nanowires with sub-30 nm periodicity using nanoporous templates fabricated from supramolecular assemblies of a block copolymer, polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) and a low molecular weight additive, 2-(4'-hydroxybenzeneazo) benzoic acid (HABA) is demonstrated. The palladium nanoparticles, which are directly deposited in the nanoporous templates from an aqueous solution, selectively migrate in the pores mainly due to their preferential attraction to the P4VP block covering the pore wall. The polymer template is then removed by oxygen plasma etching or pyrolysis in air resulting in palladium nanostructures whose large scale morphology mirrors that of the original template. The method adopted in this work is general and versatile so that it could easily be extended for patterning a variety of metallic materials into dot and wire arrays.
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. 19, No. 17, 01.09.2009, p. 2805-2811.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Arrays of Inorganic Nanodots and Nanowires Using Nanotemplates Based on Switchable Block Copolymer Supramolecular Assemblies
AU - Nandan, Bhanu
AU - Bhoje Gowd, E.
AU - Bigall, Nadja C.
AU - Eychmüller, Alexander
AU - Formanek, Petr
AU - Simon, Paul
AU - Stamm, Manfred
PY - 2009/9/1
Y1 - 2009/9/1
N2 - Here, a novel and simple route to fabricate highly dense arrays of palladium nanodots and nanowires with sub-30 nm periodicity using nanoporous templates fabricated from supramolecular assemblies of a block copolymer, polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) and a low molecular weight additive, 2-(4'-hydroxybenzeneazo) benzoic acid (HABA) is demonstrated. The palladium nanoparticles, which are directly deposited in the nanoporous templates from an aqueous solution, selectively migrate in the pores mainly due to their preferential attraction to the P4VP block covering the pore wall. The polymer template is then removed by oxygen plasma etching or pyrolysis in air resulting in palladium nanostructures whose large scale morphology mirrors that of the original template. The method adopted in this work is general and versatile so that it could easily be extended for patterning a variety of metallic materials into dot and wire arrays.
AB - Here, a novel and simple route to fabricate highly dense arrays of palladium nanodots and nanowires with sub-30 nm periodicity using nanoporous templates fabricated from supramolecular assemblies of a block copolymer, polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) and a low molecular weight additive, 2-(4'-hydroxybenzeneazo) benzoic acid (HABA) is demonstrated. The palladium nanoparticles, which are directly deposited in the nanoporous templates from an aqueous solution, selectively migrate in the pores mainly due to their preferential attraction to the P4VP block covering the pore wall. The polymer template is then removed by oxygen plasma etching or pyrolysis in air resulting in palladium nanostructures whose large scale morphology mirrors that of the original template. The method adopted in this work is general and versatile so that it could easily be extended for patterning a variety of metallic materials into dot and wire arrays.
UR - http://www.scopus.com/inward/record.url?scp=69949153394&partnerID=8YFLogxK
U2 - 10.1002/adfm.200900141
DO - 10.1002/adfm.200900141
M3 - Article
AN - SCOPUS:69949153394
VL - 19
SP - 2805
EP - 2811
JO - Advanced functional materials
JF - Advanced functional materials
SN - 1616-301X
IS - 17
ER -