Issue 38, 2011
From the journal:

Journal of Materials Chemistry

Nano-patterned monolayer and multilayer structures of FePtAu nanoparticles on aluminum oxide prepared by nanoimprint lithography and nanomolding in capillaries†

T. Gang,‡a   O. Yildirim,‡bc   S. Kinge,ad   X. Duan,b   D. N. Reinhoudt,bd   D. H. A. Blank,c   G. Rijnders,*c   W. G. van der Wiel*a  and  J. Huskens*b  

* Corresponding authors

a NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede, AE, The Netherlands
E-mail: w.g.vanderwiel@utwente.nl
Fax: +31 53 4893343
Tel: +31 53 4892873

b Molecular Nanofabrication Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede, AE, The Netherlands
E-mail: j.huskens@utwente.nl
Fax: +31 53 4894645
Tel: +31 53 4892995

c Inorganic Materials Science, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede, AE, The Netherlands
E-mail: a.j.h.m.rijnders@utwente.nl
Fax: +31 53 4893595
Tel: +31 53 4892618

d Supramolecular Chemistry & Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede, AE, The Netherlands
Fax: +31 53 4894645
Tel: +31 53 4892980

Abstract

Owing to the superior dielectric property of aluminum oxide, precise patterning of self-assembled monolayers (SAMs) and nanoparticles (NPs) on aluminum oxide substrates is highly interesting for generating SAM- or NP-based electronic devices. This study employed nanoimprint lithography (NIL) and nanomolding in capillaries (NAMIC) for patterning ferromagnetic NPs on aluminum oxide substrates. We demonstrated the fabrication of structured arrays of various SAMs and NPs in micrometre and nanometre ranges. The polymer template generated by NIL behaved as a physical barrier and defined the pattern areas on the substrate. FePtAu NPs were assembled on phosph(on)ate SAM-modified polymer patterned substrates. After polymer removal, nano- and microscale line and dot NP patterns, with controlled layer thickness, were obtained on aluminum oxide substrates. Thick nanolines of NPs were obtained by NAMIC. PO3-terminated FePtAu NPs were assembled on alumina without need of a linker. The magnetic properties of the NPs were addressed by vibrating sample magnetometry and those of the patterned NPs by magnetic force microscopy.

Graphical abstract: Nano-patterned monolayer and multilayer structures of FePtAu nanoparticles on aluminum oxide prepared by nanoimprint lithography and nanomolding in capillaries

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Article information

DOI
https://doi.org/10.1039/C1JM11559F
Article type
Paper
Submitted
12 Apr 2011
Accepted
21 Jul 2011
First published
16 Aug 2011

J. Mater. Chem., 2011,21, 14800-14806

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Nano-patterned monolayer and multilayer structures of FePtAu nanoparticles on aluminum oxide prepared by nanoimprint lithography and nanomolding in capillaries

T. Gang, O. Yildirim, S. Kinge, X. Duan, D. N. Reinhoudt, D. H. A. Blank, G. Rijnders, W. G. van der Wiel and J. Huskens, J. Mater. Chem., 2011, 21, 14800 DOI: 10.1039/C1JM11559F

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