Large‐area open air plasma sources for roll‐to‐roll manufacture

Abstract

SummaryThe aim of the current paper is to introduce technology for the generation of high‐power density surface plasma by a diffuse coplanar surface barrier discharge (DCSBD) plasma unit. The diffuse and uniform plasma generated in low‐cost gases such as open air enables easy integration into novel or existing roll‐to‐roll (R2R) lines. We briefly discuss the history of the development of dielectric barrier discharges (DBDs) toward the most advanced plasma sources based on the coplanar arrangement of electrodes. Moreover, we present and discuss the advantages and disadvantages of the effect of volume and coplanar DBD treatments performed in R2R mode on the surface of polyamide. The paper also discusses the potential of R2R plasma treatments for next‐generation applications of novel flexible and printed electronics.

From Basics to Frontiers: A Comprehensive Review of Plasma-Modified and Plasma-Synthesized Polymer Films

“…For example, Stepanova et al designed a device where polyethylene/polyamide films pass through a region of plasma measuring 8 cm × 20 cm, at speeds between 4 and 16 cm/s, resulting in a plasma exposure time of less than one second [325] . Diffuse coplanar surface barrier discharges (DCDBD) are often implemented in these roll-to-roll devices to generate a high-power density plasma operating in ambient air [326,327,328,329] .…”

“…For example, Stepanova et al designed a device where polyethylene/polyamide films pass through a region of plasma measuring 8 cm × 20 cm, at speeds between 4 and 16 cm/s, resulting in a plasma exposure time of less than one second [325]. Diffuse coplanar surface barrier discharges (DCDBD) are often implemented in these roll-to-roll devices to generate a high-power density plasma operating in ambient air [326][327][328][329]. In addition to rollto-roll systems, large-area dielectric devices can be designed for treating large-area polymer, such as automotive exterior parts or large plastic sheets used in construction or signage, whether to solve adhesion or corrosion issues [330].…”

Nanocrystalline TiO2/Ti3C2Tx MXene composites with a tunable work function prepared using atmospheric pressure oxygen plasma

“…37 Furthermore, DCSBD enables integration into atmospheric R2R with the possibility of upscaling the width of the treatment area up to 1 m or more. 38 The high-power-density plasma (up to 100 W cm −3 ) generated using DCSBD considerably shortens the treatment time to obtain the same results as those obtained from composites prepared using conventional high-temperature processing methods. The application of atmospheric oxygen DCSBD plasma on the Ti 3 C 2 T x MXene surface led to rapid oxidation of the surface within seconds of exposure, following the formation of nanocrystalline TiO 2 nanoparticles on the surface.…”