Atmospheric pressure plasma jets: an overview of devices and new directions

Abstract

Atmospheric pressure plasma jets have a long history of more than 50 years. During this time their design and plasma generation mechanism has been developed and adapted to various fields of applications. This review aims at giving an overview of jet devices by starting with a brief history of their development. This is followed by an overview of commonly used terms and definitions as well as a survey of different classification schemes (e.g. geometry, excition frequency or specific energy input) described in literature. A selective update of new designs and novel research achievments on atmospheric pressure plasma jets published in 2012 or later shows the impressive variety and rapid development of the field. Finally, a brief outlook on the future trends and directions is given.

Cold atmospheric plasma manipulation of proteins in food systems

“…The flexible electrode configuration has been utilized for the encapsulated plasma treatment of foodstuff (Yong et al, 2015). Winter et al (2015) reviewed APPJ's new development and updates in APPJ design. APPJ is widely used discharge type plasma that consists of two electrodes without any dielectric cover over them.…”

Power measurement for an atmospheric pressure plasma jet at different frequencies: distribution in the core plasma and the effluent

“…While the basic research on biological effects in this field is meanwhile well established, the physics of the plasma sources itself must be well understood in order to explain the treatment effects and to address safety issues [2,3].…”

Time Behaviour of Helium Atmospheric Pressure Plasma Jet Electrical and Optical Parameters

“…Plasma jets are a distinct category of plasma sources, with specific transport of active species, able to be integrated in production lines or to be used in single, specific applications. Over the past half-century, atmospheric pressure plasma jets (APPJ) were widely used for technological applications, starting with thermal plasma jets used for propulsion, cutting and welding devices or materials deposition [1]. Subsequently, non-thermal plasma jets were developed in various configurations, as response to the increasing industry demands to process heat sensitive materials.…”

“…In order to distinguish between the different studied plasma jets, a series of parameters may be used to classify these plasma sources: thermal equilibrium, geometry and gas environment, electrical field configuration, excitation method, stationary versus transient processes [1]. It is thus possible to identify local thermodynamic equilibrium (LTE) plasma jets (based on arc and torches) and non-LTE plasma jets (based on barrier, corona, radiofrequency or microwave discharges).…”