Nanoscience with non-equilibrium plasmas at atmospheric pressure

Abstract

This review devoted to nanoscience with atmospheric pressure plasmas shows how nanomaterials are synthesised locally using three main ways: localized PECVD, nanoparticles and templates. On the other hand, self-organization of nano-objects on surfaces is driven by electric fields, stress and high temperatures. We show that the specificities of plasmas at high pressure, as their small size, their self-organization or their filamentation have been little exploited in the synthesis of nanomaterials. Finally, perspectives in the field are given.

Synthesis of iron-oxide nanowires using industrial-grade iron substrates

“…Temperatures of several samples exposed to oxygen plasma as a function of treatment time. sample was well oxidized prior to plasma treatment the observation supports the hypothesis reported by Belmonte et al [11,16] and confirms that not only Nb 2 O 5 nanowires grow on previously oxidized metal samples.…”

“…An interesting hypothesis of nanowire growth has been proposed recently [11,16]. According to the hypothesis bundles of metal oxide nanowires should grow on the surface of a metal coated with a thin oxide film.…”

Temperature Controllable Atmospheric Plasma Source

“…A TMOSPHERIC pressure plasmas have significant advantages in industrial applications compared with conventional low-pressure plasmas, because they do not require a vacuum chamber and an exhaust system [1]. Equipments for plasma generation are simple and low cost.…”

Localized growth of materials from amorphous hydrogenated carbon by barrier-discharge treatment of benzene vapor-argon mixture

“…The main a C:H film prepara tion procedure is chemical vapor deposition of hydro carbons in electric discharge plasmas. There are reports on the possibility of localized growth of a C:H materials (hereinafter, localized materials, LMs) using this process [2]. Localized materials are 3 D objects that are isolated from each other and have a size rang ing from a few nanometers to micrometers.…”

“…LMs are of interest for microelectronics, promising catalyst carri ers, chemical sensors, etc. [2]. LMs are manufactured primarily from gaseous hydrocarbons and organosili con compounds [3][4][5] or by deposition of nanoparti cles [6].…”