Recent advances in micro-discharges ‒ sources and diagnostics

Autor: Sylvain Iséni, Nelly Bonifaci, Ahmed Khacef, Remi Dussart
Přispěvatelé: Iséni, Sylvain, Groupe de recherches sur l'énergétique des milieux ionisés (GREMI), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Génie Electrique de Grenoble (G2ELab ), Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), SFB (Sonderforschungsbereich) CRC1316 - Transient Atmospheric Plasmas: from plasmas to liquids to solids
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: MGK Colloquium-Transient Atmospheric Plasmas: from plasmas to liquids to solids
MGK Colloquium-Transient Atmospheric Plasmas: from plasmas to liquids to solids, Apr 2021, Bochum, Germany
HAL
Popis: International audience; Micro-plasmas and micro-discharges are low temperature plasmas sources under intensive development over the past two decades[1]. A variety of plasma sources exists involving different geometries and electrical excitation operation from which plasma properties are significantly influenced. Due to their small dimensions – with at least one dimension being in the millimeter scale – micro-reactors are challenging to study experimentally. Diagnostics are limited due to the limited access and require more additional efforts to measure key plasma parameters such as the gas temperature, the electron density number, the electric field[2]…This presentation is structured threefold: a first part is an overview about micro-plasmas and micro-discharges which focuses on silicon-based micro-hollow discharges (MHCD)[3]. Those reactors have their three dimensions in the micrometer scale and represent the extreme case of micro-scale plasma source. This micro-reactors have already shown their capability to form 2D micro-arrays and 3D micro-plasma jet arrays[4]. The later being the early design of large scale atmospheric pressure low temperature plasma jet among other recent devices based on guided ionization waves[5,6].A second part deals with an well suited approach to optically diagnose the MHCD. It is based on optical emission spectroscopy of atomic line which are significantly affected by the so-called resonant broadening. The method is used to measure spatially the gas temperature. In this example, the results are validated with the rotational temperature of the second positive system of nitrogen[7]. The analysis of resonant line profile lead us to introduce another diagnostic method in a different type of micro-plasmas commonly named atmospheric pressure plasmas jet (APPJ). This kind of device produces guided ionization waves expanding into the free space. An example of the resonant broadening line analysis will be given to measure the electrohydrodynamic force induced by the transient nature of guided ionization waves[8]. The last part will be present an original approach to generate guided ionization wave without electrode. Based on a plasma transfer across dielectric tube introduced by Lu et. al.[9], a recent study has shown intriguing results with the identification of three propagation modes[10]. The latter source described as electrodeless atmospheric secondary induced ionization jet (EASII-jet) will be presented showing promising features to support environmental and biological applications. The cheap and simple design of EASII-jet can also be implemented to integrated microfluidic systems to active liquids and surfaces.References:[1] Bruggeman P and Brandenburg R 2013 Atmospheric pressure discharge filaments and microplasmas: physics, chemistry and diagnostics J. Phys. Appl. Phys. 46 464001–464001[2] Iseni S 2020 Mapping the electric field vector of guided ionization waves at atmospheric pressure Plasma Res. Express 2 025014[3] Michaud R, Felix V, Stolz A, Aubry O, Lefaucheux P, Dzikowski S, Schulz-von der Gathen V, Overzet L J and Dussart R 2018 Direct current microhollow cathode discharges on silicon devices operating in argon and helium Plasma Sources Sci. Technol. 27 025005[4] Sun P P, Cho J H, Park C-, Park S- and Eden J G 2012 Close-Packed Arrays of Plasma Jets Emanating From Microchannels in a Transparent Polymer IEEE Trans. Plasma Sci. 40 2946–50[5] Liang Y, Li Y, Sun K, Zhang Q, Li W, Zhu W, Zhang J and Fang J 2015 Plasma Thorns: Atmospheric Pressure Non-Thermal Plasma Source for Dentistry Applications Plasma Process. Polym. 12 1069–74[6] Dobrynin D and Fridman A A 2018 Planar Helium Plasma Jet: Plasma “Bullets” Formation, 2D “Bullets” Concept and Imaging Plasma Med. 8[7] Iseni, Sylvain S, Michaud, Ronan R, Lefaucheux P, Sretenović G B, Schulz-von der Gathen V and Dussart R 2019 On the validity of neutral gas temperature by emission spectroscopy in micro-discharges close to atmospheric pressure Plasma Sources Sci. Technol. 28 065003[8] Iseni S, Pichard C and Khacef A 2019 Monitoring hydrodynamic effects in helium atmospheric pressure plasma jet by resonance broadening emission line Appl. Phys. Lett. 115 034102[9] Lu X, Xiong Q, Xiong Z, Hu J, Zhou F, Gong W, Xian Y, Zou C, Tang Z, Jiang Z and Pan Y 2009 Propagation of an atmospheric pressure plasma plume J. Appl. Phys. 105 043304[10] Iseni S, Baitukha A, Bonifaci N, Pichard C and Khacef A 2020 Electrodeless atmospheric secondary induced ionization jet (EASII-jet): Dynamics and properties of a transferred helium plasma source Phys. Plasmas 27 123504
Databáze: OpenAIRE
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