title: Nanostructure synthesis at the solid-water interface: spontaneous assembly and chemical transformations of tellurium nanorods.
abstract: Bottom-up synthesis offers novel routes to obtain nanostructures for nanotechnology applications. Most self-assembly processes are carried out in three dimensions (i.e. solutions); however, the large majority of nanostructure-based devices function in two dimensions (i.e. on surfaces). Accordingly, an essential and often cumbersome step in bottom-up applications involves harvesting and transferring the synthesized nanostructures from the solution onto target surfaces. We demonstrate a simple strategy for the synthesis and chemical transformation of tellurium nanorods, which is carried out directly at the solid-solution interface. The technique involves binding the nanorod precursors onto amine-functionalized surfaces, followed by in situ crystallization/oxidation. We show that the surface-anchored tellurium nanorods can be further transformed in situ into Ag2Te, Cu2Te, and SERS-active Au-Te nanorods. This new approach offers a way to construct functional nanostructures directly on surfaces.
authors: Department of Chemistry, Ben Gurion University of the Negev, 1 Ben Gurion Avenue, Beer Sheva 84105 (Israel), Fax: +972-8-6472943.
authors: T P
authors: TP
authors: Vinod
authors: Natalya
authors: N
authors: Froumin
authors: Dimitry
authors: D
authors: Mogiliansky
authors: Leila
authors: L
authors: Zeiri
authors: Vladimir
authors: V
authors: Ezersky
authors: Raz
authors: R
authors: Jelinek
keywords: bottom-up synthesis; hybrid nanorods; nanostructures; solid-water interface; tellurium