1D Nanofabrication with a Micrometer-Sized Laser Spot.

In: Nano Letters, Jg. 6 (2006) ; Nr. 10, pp. 2358-2361
ISSN: 1530-6984
Zeitschriftenaufsatz / Fach: Chemie
A simple laser-assisted procedure for the fabrication of functional org. nanostructures is demonstrated. Native silicon samples are coated with alkylsiloxane monolayers and patterned with a focused beam of an Ar+ laser (l = 514 nm). After patterning, the coating is chem. functionalized following a robust prepn. scheme. Despite a laser spot diam. of about 2.5 mm, this routine allows for the fabrication of well-confined organosiloxane stripes with widths below 100 nm. As shown, these structures provide a versatile means for building ordered surface architectures of nanoscopic components. In particular, gold nanoparticles (d = 16 nm) self-assemble into one-dimensional arrangements, such as single chains.