Eur. Phys. J. Appl. Phys.
Volume 47, Number 2, August 200911th International Symposium on High Pressure, Low Temperature Plasma Chemistry (HAKONE XI)
|Number of page(s)||7|
|Section||11th International Symposium on High Pressure, Low Temperature Plasma Chemistry (HAKONE XI)|
|Published online||05 June 2009|
Atmospheric pressure generation of O2(a1Δg) by microplasmas
Laboratoire de Physique des Gaz et des Plasmas, UMR 8578 CNRS/Université Paris-Sud, Bât. 210, 91405 Orsay, France
2 Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
3 Laboratoire des Techniques de la Microélectronique, UMR 5129 CNRS/Université Joseph Fourier/INPG, 17 av. des Martyrs, 38054 Grenoble, France
Corresponding author: firstname.lastname@example.org
Accepted: 6 April 2009
Published online: 5 June 2009
The generation of singlet delta oxygen states (O2(a1Δg)) by microplasmas has been studied experimentally. In the present paper, it is shown that micro-cathode sustained discharges (MCSD's) can be used to produce high fluxes of O2(a1Δg) at atmospheric pressure. In He/O2/NO mixtures, O2(a1Δg) number densities higher than 1016 cm−3 can be generated by this 3-electrode configuration and transported over distances of some tens of cm. In fact, at total flow rates up to 30 ln/min, O2(a1Δg) fluxes above 10 mmol/h were measured in the MCSD afterglow, at 26 cm downstream. As a result, MCSD's appear to be very efficient and suitable tools for the continuous production of large amounts of O2(a1Δg) at atmospheric pressure, which could give rise to a wide range of new applications, namely biological. The effect of different parameters such as gas flows and mixtures, and discharge current are discussed in the paper.
PACS: 52.50.Dg – Plasma sources / 52.70.Kz – Optical (ultraviolet, visible, infrared) measurements / 52.80.Tn – Other gas discharges
© EDP Sciences, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.