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Microcontact deprinting: A technique to pattern gold nanoparticles

Chen, Jingyu, Mela, Petra, Moller, Martin and Lensen, Marga C. 2009, Microcontact deprinting: A technique to pattern gold nanoparticles, ACS nano, vol. 3, no. 6, pp. 1451-1456, doi: 10.1021/nn9002924.

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Title Microcontact deprinting: A technique to pattern gold nanoparticles
Author(s) Chen, Jingyu
Mela, Petra
Moller, Martin
Lensen, Marga C.
Journal name ACS nano
Volume number 3
Issue number 6
Start page 1451
End page 1456
Total pages 6
Publisher ACS Publications
Place of publication Washington, DC
Publication date 2009
ISSN 1936-086X
Keyword(s) hierarchical pattern
block copolymer micelles
nanoparticles
stamp deformation
Summary A simple and general patterning technique for inorganic nanoparticles (NPs, e.g., gold NPs) is demonstrated, consisting of the selective lift-off of metal precursor loaded block copolymer micelles. The procedure works as follows: first, a topographically micropatterned polystyrene (PS) stamp is placed in contact with a substrate covered with hexagonally arranged micelles. Then the assembly is heated above the glass transition temperature (Tg) of PS, and finally, the PS stamp is peeled off, removing from the substrate the micelles that were in contact with the protrusions of the stamp. As a result, patterns of micelles either exactly identical to the original or with much smaller features down to submicrometer were obtained. In a subsequent step, the organic material can be removed and the metal precursor reduced by plasma treatment, resulting in patterns of NPs. This technique, denoted as “μ-contact deprinting”, provides a fast and inexpensive way to obtain hierarchical patterns of NPs on a wide range of substrates. It is demonstrated that it can even be applied on curved surfaces because of the softness of the PS stamp above its T
Language eng
DOI 10.1021/nn9002924
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2009, ACS Publications
Persistent URL http://hdl.handle.net/10536/DRO/DU:30064306

Document type: Journal Article
Collection: Institute for Frontier Materials
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