Publication detail

Surface cleaning with atmospheric pressure plasma jet investigated by in-situ optical emission spectroscopy and laser-induced breakdown spectroscopy

KLEŠTINEC, R. POŘÍZKA, P. KAISER, J. PEDARNIG, J. GIANNAKARIS, N. NIEBAUER, M. GURTLER, G. STEHRER, T.

Original Title

Surface cleaning with atmospheric pressure plasma jet investigated by in-situ optical emission spectroscopy and laser-induced breakdown spectroscopy

Type

journal article in Web of Science

Language

English

Original Abstract

Cleaning of surfaces with atmospheric pressure plasma jet (APPJ) is investigated by in-situ optical emission spectroscopy (OES) and laser-induced breakdown spectroscopy (LIBS). The APPJ device operates a spark discharge of kW power in Argon gas flow resulting in a powerful plasma jet expanding into air. For cleaning experiments samples are coated with lubricant layers of 1.1 to 7.1 mu m thickness. Light collected at the sample surface during APPJ treatment is analyzed spectroscopically and used to monitor the cleaning process. LIBS chemical imaging delivers spatial cleaning profiles of plasma treated surfaces. From measured emission intensities of CN molecular band and Na atomic line the cleaning efficiencies for carbon and Na containing contaminants are determined. The power of APPJ plasma generator, distance between sample and jet nozzle, scan speed, and Argon gas flow are varied to optimize the surface treatment. Thermal and non-thermal processes contribute to cleaning. For the carbon containing contaminant thermal processes are dominating (similar to 90 %) while also non-thermal processes (similar to 30-45 %) are relevant for the Na containing component. A cleaned surface area per time from 0.3 to 10 cm(2)/s is investigated. Cleaning efficiency up to 95 % is obtained highlighting the potential of APPJ surface cleaning under ambient conditions.

Keywords

Atmospheric pressure plasma jet; Surface cleaning; Optical emission spectroscopy; Laser-induced breakdown spectroscopy; Thermal cleaning processes; Non-thermal cleaning processes; Surface cleaning efficiency

Authors

KLEŠTINEC, R.; POŘÍZKA, P.; KAISER, J.; PEDARNIG, J.; GIANNAKARIS, N.; NIEBAUER, M.; GURTLER, G.; STEHRER, T.

Released

1. 3. 2025

Publisher

ELSEVIER

Location

AMSTERDAM

ISBN

1873-5584

Periodical

APPLIED SURFACE SCIENCE

Year of study

684

Number

161751

State

Kingdom of the Netherlands

Pages count

12

URL

https://www.sciencedirect.com/science/article/pii/S016943322402467X?via%3Dihub

BibTex

@article{BUT194129,
  author="Róbert {Kleštinec} and Pavel {Pořízka} and Jozef {Kaiser} and Johannes D. {Pedarnig} and Nikolaos {Giannakaris} and Michael {Niebauer} and Gustav {Gurtler} and Thomas {Stehrer}",
  title="Surface cleaning with atmospheric pressure plasma jet investigated by in-situ optical emission spectroscopy and laser-induced breakdown spectroscopy",
  journal="APPLIED SURFACE SCIENCE",
  year="2025",
  volume="684",
  number="161751",
  pages="12",
  doi="10.1016/j.apsusc.2024.161751",
  issn="1873-5584",
  url="https://www.sciencedirect.com/science/article/pii/S016943322402467X?via%3Dihub"
}