title: Identification of Dewetting Stages and Preparation of Single Chain Gold Nanoparticle Rings by Colloidal Lithography.
abstract: Massively parallel nanoparticle assembly was carried out by means of colloidal lithographic experiments over a silicon substrate supported (sub)microparticle Langmuir-Blodgett monolayer, using high purity aqueous solution of PEGylated gold nanoparticles. The size of the polystyrene template particles in the monolayer was varied between 608 nm and 2.48 μm, while gold nanoparticles with diameters between 18 and 65 nm were used. Thanks to the PEGylation of the gold nanoparticles, they could be used as tracer objects to follow the drying process. In this way, different dewetting stages could be identified in the confined space between and underneath the template polystyrene spheres. Depending on the concentration of the nanoparticles, the presented approach allows the preparation of single-particle width necklace structures composed of gold particles. At the same time, the high purity of the substrate as well as of the evolved particle rings is preserved and unwanted particle deposition on the substrate surface is minimized.
authors.affiliation: Institute of Technical Physics and Materials Science, Centre for Energy Research, 1525 Budapest, P.O. Box 49, Hungary.
authors.forename: Norbert
authors.initials: N
authors.lastname: Nagy
authors.affiliation: Institute of Technical Physics and Materials Science, Centre for Energy Research, 1525 Budapest, P.O. Box 49, Hungary.
authors.forename: Dániel
authors.initials: D
authors.lastname: Zámbó
authors.affiliation: Institute of Technical Physics and Materials Science, Centre for Energy Research, 1525 Budapest, P.O. Box 49, Hungary.
authors.forename: Szilárd
authors.initials: S
authors.lastname: Pothorszky
authors.affiliation: Institute of Technical Physics and Materials Science, Centre for Energy Research, 1525 Budapest, P.O. Box 49, Hungary.
authors.forename: Eszter
authors.initials: E
authors.lastname: Gergely-Fülöp
authors.affiliation: Institute of Technical Physics and Materials Science, Centre for Energy Research, 1525 Budapest, P.O. Box 49, Hungary.
authors.forename: András
authors.initials: A
authors.lastname: Deák