Thurn-Albrecht, T.;
Schotter, J.;
Kästle, G. A.;
Emley, N.;
Shibauchi, T.;
Krusin-Elbaum, L.;
Guarini, K.;
Black, C. T.;
Tuominen, M. T.;
Russell, T. P.
Ultrahigh-Density Nanowire Arrays Grown in Self-Assembled Diblock Copolymer Templates
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Medientyp:
E-Artikel
Titel:
Ultrahigh-Density Nanowire Arrays Grown in Self-Assembled Diblock Copolymer Templates
Beteiligte:
Thurn-Albrecht, T.;
Schotter, J.;
Kästle, G. A.;
Emley, N.;
Shibauchi, T.;
Krusin-Elbaum, L.;
Guarini, K.;
Black, C. T.;
Tuominen, M. T.;
Russell, T. P.
Erschienen:
American Association for the Advancement of Science (AAAS), 2000
Erschienen in:
Science, 290 (2000) 5499, Seite 2126-2129
Sprache:
Englisch
DOI:
10.1126/science.290.5499.2126
ISSN:
1095-9203;
0036-8075
Entstehung:
Anmerkungen:
Beschreibung:
We show a simple, robust, chemical route to the fabrication of ultrahigh-density arrays of nanopores with high aspect ratios using the equilibrium self-assembled morphology of asymmetric diblock copolymers. The dimensions and lateral density of the array are determined by segmental interactions and the copolymer molecular weight. Through direct current electrodeposition, we fabricated vertical arrays of nanowires with densities in excess of 1.9 × 10 11 wires per square centimeter. We found markedly enhanced coercivities with ferromagnetic cobalt nanowires that point toward a route to ultrahigh-density storage media. The copolymer approach described is practical, parallel, compatible with current lithographic processes, and amenable to multilayered device fabrication.