A4: Process control in micro atmospheric pressure RF plasma jets by voltage waveform tailoring and customised boundary surfaces

Principal Investigators: Julian Schulze

Team

Schulze, Julian (Principal Investigator)

Description

In this project, plasma sources driven by tailored voltage waveforms and equipped with structured electrodes are developed, which provide advanced control of the energy distribution function of electrons in the plasma and, thus, allow energy-efficient generation of reactive species and excited neutrals. In particular, the application of this technology to efficient plasma-induced conversion of liquid alkenes and gaseous alkanes is investigated.

Publications

• Electron dynamics of three distinct discharge modes of a cross-field atmospheric pressure plasma jet
  M Klich, D Schulenberg, S Wilczek, M Vass, T Bolles, I Korolov, J Schulze, T Mussenbrock, R P Brinkmann
  Plasma Sources Science and Technology, 34, 045012 (2025)
  Repository: https://rdpcidat.rub.de/node/1153
• Dynamics of reactive oxygen species produced by the COST microplasma jet
  S. Chur, R. Minke, Y. He, M. Vass, T. Mussenbrock, R. P. Brinkmann, E. Kemaneci, L. Schücke, V. Schulz von der Gathen, A. R. Gibson, M. Böke, J. Golda:
  arXiv (2025)
  
• Kinetic simulations of capacitively coupled plasmas driven by tailored voltage waveforms with multi-frequency matching
  S. Yu, H. Wu, S. Yang, L. Wang, Z. Chen, Z. Wang, W. Jiang, J. Schulze, Y. Zhang
  Plasma Sources Sci. Technol. 33, 075003 (2024)
  
• The effects of different pellet shapes on streamer dynamics in patterned dielectric barrier discharges
  B. Berger, Z. Mujahid, C. Neuroth, M. Azhar, L. Wang, Q. Z. Zhang, T. Mussenbrock, I. Korolov, J. Schulze
  Plasma Sources Sci. Technol. 33, 125011 (2024)
  
• Energy efficiency of reactive species generation in radiofrequency atmospheric pressure plasma jets driven by tailored voltage waveforms in He/O₂ mixtures
  M. Vass, D. Schulenberg, Z. Donkó, P. Hartmann, D. Steuer, M. Böke, V. Schulz-von der Gathen, I. Korolov, Th. Mussenbrock, J. Schulze
  Plasma Sources Sci. Technol. 33, 11LT01 (2024)
  Repository: https://rdpcidat.rub.de/node/1052
• Frequency-dependent electron power absorption mode transitions in capacitively coupled argon-oxygen plasmas
  A. Derzsi, M. Vass, R. Masheyeva, B. Horvath, Z. Donkó, P. Hartmann
  Plasma Sourc. Sci. Technol. 33, 025005 (2024)
  
• Mode Transition Induced by Gas Heating Along the Discharge Channel in Capacitively Coupled Atmospheric Pressure Micro Plasma Jets
  D. Schulenberg, M. Vass, M. Klich, Z. Donkó, J. Klotz, N. Bibinov, T. Mussenbrock, J. Schulze
  Plasma Chem. Plasma Process. 44, 1217-1235 (2024)
  Repository: https://rdpcidat.rub.de/node/726
• A new 2D fluid-MC hybrid approach for simulating nonequilibrium atmospheric pressure plasmas: density distribution of atomic oxygen in radio-frequency plasma jets in He/O₂ mixtures
  M. Vass, D. Schulenberg, Z. Donkó, I. Korolov, P. Hartmann, J. Schulze, T. Mussenbrock
  Plasma Sourc. Sci. Technol. 33, 015012 (2024)
  Repository: https://rdpcidat.rub.de/node/802
• The effects of catalyst conductivity and loading of dielectric surface structures on plasma dynamics in patterned dielectric barrier discharges
  C. Neuroth, Z. Mujahid, B. Berger, C. Oberste-Beulmann, T. Oppotsch, Q.-Z. Zhang, M. Muhler, T. Mussenbrock, I. Korolov, J. Schulze
  Plasma Sources Sci. Technol. 32, 105019 (2023)
  Repository: https://rdpcidat.rub.de/node/739
• Scanning drift tube measurements and kinetic studies of electron transport in CO
  S. Dujko, D. Bošnjaković, M. Vass, P. Hartmann, I. Korolov, N. R. Pinhão, D. Loffhagen, Z. Donkó
  Plasma Sourc. Sci. Technol. 32, 025014 (2023)
  
• Experimental validation of particle-in-cell/Monte Carlo collisions simulations in low-pressure neon capacitively coupled plasmas
  C. W. Park, B. Horvath, A. Derzsi, J. Schulze, J. H. Kim, Z. Donkó, H. C. Lee
  Plasma Sourc. Sci. Technol. 32, 115003 (2023)
  
• Metastable argon atom kinetics in a low-pressure capacitively coupled radio frequency discharge
  Z. Donkó, P. Hartmann, I. Korolov, D. Schulenberg, S. Rohr, S. Rauf, J. Schulze
  Plasma Sourc. Sci. Technol. 32, 065002 (2023)
  Repository: https://rdpcidat.rub.de/node/650
• Similarity laws for two-dimensional simulations of low-pressure capacitively coupled radio-frequency discharges
  J. Y. Sun, J. Schulze, F. F. Ma, Q.-Z. Zhang, Y. N. Wang
  Phys. Plasmas 30, 120703 (2023)
  
• Local enhancement of electron heating and neutral species generation in radio-frequency micro-atmospheric pressure plasma jets: the effects of structured electrode topologies
  Y. Liu, M. Vass, G. Hübner, D. Schulenberg, T. Hemke, L. Bischoff, S. Chur, D. Steuer, J. Golda, M. Böke, J. Schulze, I. Korolov, T. Mussenbrock
  Plasma Sources Sci. Technol. 32, 025012 (2023)
  
• Frequency coupling in low-pressure dual-frequency capacitively coupled plasmas revisited based on the Boltzmann term analysis
  M. Vass, L. Wang, S. Wilczek, T. Lafleur, R. P. Brinkmann, Z. Donkó, J. Schulze
  Plasma Sourc. Sci. Technol. 31, 115004 (2022)
  
• On the validity of the classical plasma conductivity in capacitive RF discharges
  L. Wang, M. Vass, T. Lafleur, Z. Donkó Y. H. Song, J. Schulze
  Plasma Sourc. Sci. Technol. 31, 105013 (2022)
  
• The effects of the driving frequencies on micro atmospheric pressure He/N₂ plasma jets driven by tailored voltage waveforms
  G. Hübner, L. Bischoff, I. Korolov, Z. Donkó, M. Leimkühler, Y. Liu, M. Böke, V. Schulz-von der Gathen, T. Mussenbrock, J. Schulze
  J. Phys. D: Appl. Phys. 55, 095204 (2022)
  Repository: https://rdpcidat.rub.de/node/420
• Electron power absorption in capacitively coupled neon - oxygen plasmas: a comparison of experimental and computational results
  A. Derzsi, P. Hartmann, M. Vass, B. Horvath, M. Gyulai, I. Korolov, J. Schulze, Z. Donkó
  Plasma Sourc. Sci. Technol. 31, 085009 (2022)
  
• Evolution of the bulk electric field in capacitively coupled argon plasmas at intermediate pressures
  M. Vass, S. Wilczek, A. Derzsi, B. Horvath, P. Hartmann, Z. Donkó
  Plasma Sourc. Sci. Technol. 31, 045017 (2022)
  
• Revisiting the numerical stability/accuracy conditions of explicit PIC/MCC simulations of low-temperature gas discharges
  M. Vass, P. Palla, P. Hartmann
  Plasma Sourc. Sci. Technol. 31, 064001 (2022)
  
• Computational study of simultaneous positive and negative streamer propagation in a twin surface dielectric barrier discharge via 2D PIC simulations
  Q.Z. Zhang, R.T. Nugyen-Smith, F. Beckfeld, Y. Liu, T. Mussenbrock, P. Awakowicz, J. Schulze
  Plasma Sources Sci. Technol. 30, 075017 (2021)
  Repository: https://rdpcidat.rub.de/node/312
• Zero-dimensional and pseudo-one-dimensional models of atmospheric-pressure plasma jets in binary and ternary mixtures of oxygen and nitrogen with helium background
  Y. He, P. Preissing, D. Steuer, M. Klich, V. Schulz-von der Gathen, M. Böke, I. Korolov, J. Schulze, V. Guerra, R. P. Brinkmann, E. Kemaneci
  Plasma Sources Sci. Technol. 30, 105017 (2021)
  Repository: https://rdpcidat.rub.de/node/421
• Micro atmospheric pressure plasma jets excited in He/O₂ by voltage waveform tailoring: A study based on a numerical hybrid model and experiments
  Y. Liu, I. Korolov, J. Trieschmann, D. Steuer, V. Schulz-von der Gathen, M. Böke, L. Bischoff, G. Hübner, J. Schulze, T. Mussenbrock
  Plasma Source. Sci. Technol. 30, 064001 (2021)
  
• Atomic oxygen generation in atmospheric pressure RF plasma jets driven by tailored voltage waveforms in mixtures of He and O₂
  I. Korolov, D. Steuer, L. Bischoff, G. Hübner, Y. Liu, V. Schulz-von der Gathen, M. Böke, T. Mussenbrock, J. Schulze
  J. Phys. D: Appl. Phys. 54, 125203 (2021)
  Repository: https://rdpcidat.rub.de/node/244
• Electron transport parameters in CO₂: a comparison of two experimental systems and measured data
  M. Vass, E. Egüz, A. Chachereau, P. Hartmann, I. Korolov, A. Hösl, D. Bošnjaković, S. Dujko, Z. Donkó, C. Franck
  J. Phys. D: Appl. Phys. 54, 035202 (2021)
  
• 2d spatially resolved O atom density profiles in an atmospheric pressure plasma jet: from the active plasma volume to the effluent
  D. Steuer, I. Korolov, S. Chur, J. Schulze, V. Schulz-von der Gathen, J. Golda, M. Böke
  J. Phys. D: Appl. Phys. 54, 355204 (2021)
  Repository: https://rdpcidat.rub.de/node/323
• Non-linear effects and electron heating dynamics in radio-frequency capacitively coupled plasmas with a non-uniform transverse magnetic field
  Y. Liu, J. Trieschmann, B. Berger, J. Schulze, T. Mussenbrock
  Phys. Plasmas 28, 053505 (2021)
  
• Electron heating mode transitions in radio-frequency driven micro atmospheric pressure plasma jets in He/O₂: A fluid dynamics approach
  Y. Liu, I. Korolov, T. Hemke, L. Bischoff, G. Hübner, J. Schulze, T. Mussenbrock
  J. Phys. D 54, 275204 (2021)
  
• Electron power absorption in micro atmospheric pressure plasma jets driven by tailored voltage waveforms in He/N₂
  M. Vass, S. Wilczek, J. Schulze, Z. Donkó
  Plasma Sources Sci. Technol. 30, 105010 (2021)
  
• Energy efficiency of voltage waveform tailoring for the generation of excited species in RF plasma jets operated in He/N₂mixtures
  I. Korolov, Z. Donkó, G. Hübner, Y. Liu, T. Mussenbrock, J. Schulze
  Plasma Sources Sci. Technol. 30, 095013 (2021)
  
• 3-dimensional density distributions of NO in the effluent of the COST Reference MicroplasmaJet operated in He/N₂/O₂ admixture
  P. Preissing, I. Korolov, J. Schulze, V. Schulz-von der Gathen, M. Böke
  Plasma Sources Sci. Technol. 29, 125001 (2020)
  
• Helium metastable species generation in atmospheric pressure RF plasma jets driven by tailored voltage waveforms in mixtures of He and N₂
  I. Korolov, M. Leimkühler, M. Böke, J. Schulze, Z. Donkó, T. Lafleur, S. Wilczek, R.P. Brinkmann V. Schulz-von der Gathen, L. Bischoff, G. Hübner, P. Hartmann, T. Gans, Y. Liu, T. Mussenbrock, J. Schulze
  J. Phys. D: Appl. Phys. 53, 185201 (2020)
  
• Electron swarms parameters in C₂H₂, C₂H₄ and C₂H₆: measurements and kinetic calculations
  Z. Donkó, P. Hartmann, I. Korolov, V. Jeges, D. Bošnjaković, S. Dujko
  Plasma Sources Sci. Technol. 29, 045009 (2020)
  
• Experimental observation and simulation of the equilibration of electron swarms in a scanning drift tube
  Z. Donkó, P. Hartmann, I. Korolov, V. Jeges, D. Bošnjaković, S. Dujkovic
  Plasma Sources Sci. Technol. 28, 095007 (2019)
  
• Control of electron dynamics, radical and metastable species generation in atmospheric pressure RF plasma jets by Voltage Waveform Tailoring
  I. Korolov, Z. Donkó, G. Hübner, L. Bischoff, P. Hartmann, T. Gans, Y. Liu, T. Mussenbrock, J. Schulze
  Plasma Sources Sci. Technol. 28, 094001 (2019)
  
• Disrupting the spatio-temporal symmetry of the electron dynamics in atmospheric pressure plasmas by voltage waveform tailoring
  A. Gibson, Z. Donkó, L. Alelyani, L. Bischoff, G. Hübner, J. Bredin, S. Doyle, I. Korolov, K. Niemo, T. Mussenbrock, P. Hartmann, J. Dedrick, J. Schulze, T. Gans, D. O'Connell
  Plasma Sources Sci. Technol. 28, 01LT01 (2019)
  
• Spatio temporal analysis of the electron power absorption in electropositive capacitive RF plasmas based on moments of the Boltzmann equation
  J. Schulze, Z. Donkó, T. Lafleur, S. Wilczek, R.P. Brinkmann
  Plasma Sources Sci. Technol. 27, 055010 (2018)
  
• Experimental and computational investigations of electron dynamics in micro atmospheric pressure radio-frequency plasma jets operated in He/N₂ mixtures
  L. Bischoff, G. Hübner, I. Korolov, Z. Donkó, P. Hartmann, T. Gans, J. Held, V. Schulz-von der Gathen, Y. Liu, T. Mussenbrock, J. Schulze
  Plasma Sources Sci. Technol. 27, 125009 (2018)
  

Thesis

• Lena Bischoff, Bachelor thesis - 08/2018
  Optische Emissionsspektroskopie an einem RF kapazitiv gekoppelten AP Plasma Jet unter Variation der Sauerstoffbeimischung
• Gerrit Hübner, Bachelor thesis - 08/2018
  Optische Emissionsspektroskopie an einem RF kapazitiv gekoppelten AP Plasma Jet unter Variation der Stickstoffbeimischung
• Lena Bischoff, Master thesis - 03/2021
  Investigation of the effects of customized electrodes on capacitively coupled radio frequency microplasma jets using emission spectroscopy and laser diagnostics
• Máté Vass, PhD thesis - 07/2024
  Hybrid modeling of atmospheric plasmas
• David Schulenberg, PhD thesis - 05/2024
  Voltage Waveform Tailoring in RF Plasma Jets
• Bernhard Rogg, Bachelor thesis - 01/2022
  Numerical simulation of plasma fluid flow in the exit channel of a COST micro atmospheric pressure plasma jet
• Stefan Rohr, Bachelor thesis - 04/2022
  Ortsaufgelöste Charakterisierung eines symmetrischen, kapazitiven gekoppelten Plasmas mittels Tunable Diode Laser Absorption Spectroscopy
• Constantin Neuroth, Bachelor thesis - 09/2022
  Study of the effects of metal catalyst loading and conductivity on plasma dynamics in a patterned dielectric barrier discharge
• Ahmad Al Hamdan, Bachelor thesis - 03/2023
  Study of VOC removal in a patterned dielectric barrier discharge
• Lukas Leonhard Vogelhuber, Master thesis - 05/2023
  Modellierung und Simulation von Transportprozessen im Hochfrequenz-Mikro-Atmosphärendruck-Plasmajet
• Samuel Jonas Giesekus, Master thesis - 05/2024
  Ion energy control by Voltage Waveform Tailoring in inductively coupled plasmas with substrate bias
• Tim Bolles, Master thesis - 04/2024
  Modeling and Simulation of Technological Plasmas with External Circuits
• Jeldrik Klotz, Bachelor thesis - 08/2024
  Characterisation of a COST-Plasmajet with open trenches in the electrodes
• Li Wang, PhD thesis - 01/2022
  Process control in micro atmospheric pressure RF plasma jets by voltage waveform tailoring and customised boundary surfaces

Further reading