Vanadium oxide sensing layer grown on carbon nanotubes by a new atomic layer deposition process.

Willinger, Marc-Georg; Neri, Giovanni; Rauwel, Erwan; Bonavita, Anna; Micali, Giuseppe; Pinna, Nicola · Nano Lett · 2008

basic_science · Level V

Where this comes from

Abstract

A new atomic layer deposition (ALD) process was applied for the homogeneous coating of carbon nanotubes with vanadium oxide. It permits the coating of the inner and outer surface with a highly conformal film of controllable thickness and, hence, the production of high surface area hybrid materials at a so far unprecedented quality. The ALD-coated tubes are used as active component in gas-sensing devices. They show electric responses that are directly related to the peculiar structure, i.e., the p-n heterojunction formed between the support and the film.