Directed deposition of silicon nanowires using neopentasilane as precursor and gold as catalyst

In this work the applicability of neopentasilane (Si(SiH3)4) as a precursor for the formation of silicon nanowires by using gold nanoparticles as a catalyst has been explored. The growth proceeds via the formation of liq
In this work the applicability of neopentasilane (Si(SiH3)4) as a precursor for the formation of silicon nanowires by using gold nanoparticles as a catalyst has been explored. The growth proceeds via the formation of liquid gold/silicon alloy droplets, which excrete the silicon nanowires upon continued decomposition of the precursor. This mechanism determines the diameter of the Si nanowires. Different sources for the gold nanoparticles have been tested: the spontaneous dewetting of gold films, thermally annealed gold films, deposition of preformed gold nanoparticles, and the use of “liquid bright gold”, a material historically used for the gilding of porcelain and glass. The latter does not only form gold nanoparticles when deposited as a thin film and thermally annealed, but can also be patterned by using UV irradiation, providing access to laterally structured layers of silicon nanowires.
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Metadaten
Author:Britta Kämpken, Verena Wulf, Norbert Auner, Marcel Winhold, Michael Huth, Daniel Rhinow, Andreas Terfort
URN:urn:nbn:de:hebis:30:3-263182
DOI:http://dx.doi.org/doi:10.3762/bjnano.3.62
ISSN:2190-4286
Parent Title (English):Beilstein journal of nanotechnology
Publisher:Beilstein-Institut zur Förderung der Chemischen Wissenschaften
Place of publication:Frankfurt, M.
Document Type:Article
Language:English
Date of Publication (online):2012/07/25
Date of first Publication:2012/07/25
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2012/09/18
Tag:chemical vapor deposition; gold; nanoparticle; patterning; radiation-induced nanostructures; vapor-liquid-solid mechanism
Volume:3
Pagenumber:11
First Page:535
Last Page:545
Institutes:Physik
Biochemie und Chemie
Dewey Decimal Classification:540 Chemie und zugeordnete Wissenschaften
620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 2.0

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