Issue 22, 2009
From the journal:

Journal of Materials Chemistry

Hierarchical inorganic nanopatterning (INP) through direct easy block-copolymer templating

Monika Kuemmel,a   Jan-Henrik Smått,b   Cedric Boissière,a   Lionel Nicole,a   Clément Sanchez,a   Mika Lindénb  and  David Grosso*a  

* Corresponding authors

a Laboratoire de Chimie de la Matière Condensée de Paris, UMR 7574, Université Pierre et Marie Curie, Paris 6, CNRS, 4 place Jussieu, 75252 Paris cedex 05, France
E-mail: david.grosso@upmc.fr
Fax: +33 (0) 1 44 27 47 69
Tel: +33 (0) 1 44 27 55 42

b Department of Physical Chemistry, Abo Akademi University, Porthansgatan 3–5, FIN-20500 Turku, Finland

Abstract

We introduce a simple route towards hierarchical TiO2 nanopatterns using a block-copolymer template approach combined with a dip-coating process and soft inorganic chemistry. The bimodal characteristic is associated to the preparation of solutions that contain two distinct populations of micelles PB-b-PEO (with the same chemical nature but different sizes) that do not mix or aggregate. The relative quantity of each population can be precisely adjusted in the initial solution composition by mixing the corresponding proportion of parent solutions, and is recovered in the final TiO2 nanopattern. The latter hierarchical nanopatterning exhibits homogeneous distribution of 2 distinct sizes of nanoperforations in relation to the presence of both micelles. We show that the bimodal micellar solution is stable for more than four weeks at RT, revealing an unexpected dynamic stability. We believe that the resulting nanopatterns could be useful for investigating the behaviour of block copolymer micelles in solutions. The present study is mainly supported by DLS and AFM analyses.

Graphical abstract: Hierarchical inorganic nanopatterning (INP) through direct easy block-copolymer templating

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Article information

DOI
https://doi.org/10.1039/B900518H
Article type
Paper
Submitted
12 Jan 2009
Accepted
11 Mar 2009
First published
15 Apr 2009

J. Mater. Chem., 2009,19, 3638-3642

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Hierarchical inorganic nanopatterning (INP) through direct easy block-copolymer templating

M. Kuemmel, J. Smått, C. Boissière, L. Nicole, C. Sanchez, M. Lindén and D. Grosso, J. Mater. Chem., 2009, 19, 3638 DOI: 10.1039/B900518H

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