Publication

Uniformly Dispersed Deposition of Colloidal Nanoparticles and Nanowires by Boiling

Jürgen Brugger, László Forró, Arnaud Magrez, Andrzej Kulik, Sylvia Jeney, Jin Won Seo, Kyumin Lee, Martial Duchamp, Gerit Kulik, Ravi Shankar Sundaram
2007
Journal Articles

Abstract

Uniformly dispersed deposition of various nanoparticles (gold and silver of 20?50 nm) and nanowires (ZnO and VOx) on different surfaces (Si, GaAs, mica, and steel) was obtained by boiling colloid drops on preheated substrates. Our results suggest a deposition mechanism based on the formation of microdrops induced by boiling. Indeed, microdrops produced by an ink-jet printing system resulted in uniformly dispersed deposits when the substrate was heated to high temperatures. We demonstrate that boil-deposited gold nanoparticles could be used for the catalytic growth of ZnO nanowires as well as for the manipulation of individual particles by means of an atomic force microscope.

Official source

https://infoscience.epfl.ch/entities/publication/5155871f-e7f3-409b-b966-c000393ea599

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Jürgen Brugger, László Forró, Arnaud Magrez, Andrzej Kulik, Sylvia Jeney, Jin Won Seo, Kyumin Lee, Martial Duchamp, Gerit Kulik, Ravi Shankar Sundaram
2007
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5155871f-e7f3-409b-b966-c000393ea599

About this result

Related concepts (18)

Nanoparticle

A nanoparticle or ultrafine particle is usually defined as a particle of matter that is between 1 and 100 nanometres (nm) in diameter. The term is sometimes used for larger particles, up to 500 nm, or fibers and tubes that are less than 100 nm in only two directions. At the lowest range, metal particles smaller than 1 nm are usually called atom clusters instead.

Colloidal gold

Colloidal gold is a sol or colloidal suspension of nanoparticles of gold in a fluid, usually water. The colloid is coloured usually either wine red (for spherical particles less than 100 nm) or blue-purple (for larger spherical particles or nanorods). Due to their optical, electronic, and molecular-recognition properties, gold nanoparticles are the subject of substantial research, with many potential or promised applications in a wide variety of areas, including electron microscopy, electronics, nanotechnology, materials science, and biomedicine.

Silver nanoparticle

Silver nanoparticles are nanoparticles of silver of between 1 nm and 100 nm in size. While frequently described as being 'silver' some are composed of a large percentage of silver oxide due to their large ratio of surface to bulk silver atoms. Numerous shapes of nanoparticles can be constructed depending on the application at hand. Commonly used silver nanoparticles are spherical, but diamond, octagonal, and thin sheets are also common. Their extremely large surface area permits the coordination of a vast number of ligands.

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