Research

The research fields of this group comprise the physics and chemistry of non-thermal plasmas. In particular, the dynamics, structure formation and reactivity of low and atmospheric pressure plasmas in contact with surfaces are in the focus of interest. Advanced plasma and gas phase diagnostics are used to achieve fundamental knowledge on the discharge development and stability, the plasma sheath properties as well as the influence of surface charges, secondary species, negative ions and metastables.
The complex interaction of molecular plasmas with material surfaces, leading to the chemical surface modification, etching or deposition of functional thin films, is a second line of investigations. The latter may be applied for synthesis of novel materials combining plasma and nanoscience as well as plasma science and biomedicine.

Expertise

  • Electron heating and operation modes of electronegative radio frequency plasmas
  • Development and operation modes of barrier discharges
  • Lateral structuring of barrier discharges
  • Plasma polymerization
  • Plasma surface modification
  • Plasma etchin

Scientific collaborations

  • Z. Donko (Hungarian Acad. Sci., Budapest)
  • K.V. Kozlov (Moscow State Univ.)
  • M. Kuraica (Univ. Belgrad)
  • B. Nebe (Univ. Rostock)
  • K. Vissing, M. Ott (IFAM Bremen)
  • R. Brandenburg, T. Hoder, D. Loffhagen, J. Röpcke (INP Greifswald)
  • J. Schulze, U. Czarnetzki (Univ Bochum)
  • P. Swiderek (Univ. Bremen)
  • D. Trunec, M. Cernak, L. Zajickova (Masaryk Univ. Brno)

Current research projects

DFG Transregional Collaborative Research Centre 24

"Fundamentals of Complex Plasmas"
funded since 2005

DAAD Project with Serbia:

"Volume and Surface Processes in Barrier Discharges"
University of Greifswald (J. Meichsner) / University of Belgrad (M. Kuraica) 2014-2015

 

Completed research projects

BMBF research association "Campus PlasmaMed"

BMBF research association "Campus PlasmaMed"

Project: "PlasmaImp"

13N11182, 13N9774 
University of Greifswald (J. Meichsner), 2008-2013

VolkswagenStiftung

VolkswagenStiftung

Project: "Plasma Hybrid Coating: Functional Surfaces by Plasma Supported Nano Technology"

IFAM Bremen, Univ. Bremen, Univ. Greifswald, (H.-E. Wagner, J. Meichsner), 2008-2012

DFG Transregional Collaborative Research Center 24

DFG Transregional Collaborative Research Center 24

"Fundamentals of Complex Plasmas"

Project B1: "Reactivity and pattern formation in plasmas of electronegative gases"

(H.-E. Wagner/B. Bruhn), 2005-2009

DFG Grant ME 1506/6-1

DFG Grant ME 1506/6-1

"Plasma chemical interaction processes of reactive low pressure plasmas in oxygen with the surface of solid ion conductor"

(J. Meichsner), 2005-2008

Research project with IFAM Bremen

Research project with IFAM Bremen

"Diagnostics of plasma beams in molecular gases and their application to surface treatment"

(H.-E. Wagner), 2004-2007

BMBF Collaborative Research Project

BMBF Collaborative Research Project

"Analysis and modelling of the Interaction of pulsed plasmas with surfaces"

Project part: 13N8051 (J. Meichsner), 2001-2004

DFG Research Unit FOR 365

DFG Research Unit FOR 365

"Precise surface treatment by stimulated particle beam"

Project part 5.1 (H.-E. Wagner, Uni Greifswald), 1999 - 2004

Project part 5.2 (A. Schindler, IOM Leipzig/H.-E. Wagner, Uni Greifswald), 1999 - 2004

Reseach project with IFAM Bremen

Reseach project with IFAM Bremen

"Spectroscopic measurements on plasma jet at atmospheric pressure"

(H.-E. Wagner), 2001-2003

DFG Collaborative Research Centre 198: "Kinetics of Partially Ionized Plasmas"

DFG Collaborative Research Centre 198: "Kinetics of Partially Ionized Plasmas"

2002 - 2004  (4th funding period):

Project part A10: "Kinetics of reactive plasmas under instationary and inhomogeneous conditions at pressures up to 1 bar" , (H.-E. Wagner, P. Michel)

Project part A13: "Analysis and kinetics of transient species in the electrode near plasma and in plasma sheaths of an RF discharge in molecular gases", (J. Meichsner)

1999 - 2001  (3rd funding period):

Project part A10: "Kinetics of reactive plasmas under instationary and inhomogeneous conditions at higher pressures", (H.-E. Wagner)

Project part A13: "Ion and radical kinetics in the electrode near plasma and in plasma sheaths of an RF discharge in reactive gases" (J. Meichsner)

1996 - 1998  (2nd funding period):

Project part A10: "Kinetics of reactive plasmas - experiments as well as microscopic and macroscopic modelling" (H.-E. Wagner/A. Rutscher)

1993 - 1995  (1st funding period):

Project part A1: "Kinetic basics of weakly-ionized and collision-dominated plasmas - Macroscopic kinetics" (H.-E. Wagner/A. Rutscher)

DFG Research Grant ME 1506/2-1,2

DFG Research Grant ME 1506/2-1,2

"In situ FTIR spectroscopy of plasma modification and polymerisation in low pressure plasma by fiber-based ATR technique"

(J. Meichsner), 1996 - 2001

DFG Research Grant ME 1506/1

DFG Research Grant ME 1506/1

"Investigations of the plasma sheath dynamics in radio frequency discharges by experimental determination of ion energy distribution functions at the discharge electrodes"

(J. Meichsner), 1996 - 1999

DFG Innovation Collaborative Research INK 2:

DFG Innovation Collaborative Research INK 2:

"Methods and material systems for the nanometer scale"

Project part A4: "Laser diagnostics of plasma sheaths"

(J. Meichsner/T.Glenewinkel-Meyer),1994 - 1999

BMBF Research Project 13N6115:

BMBF Research Project 13N6115:

"Fundamental investigations of physical and chemical processes in plasma modification of polymer surfaces"

(J. Meichsner), 1993 - 1996

Diagnostic techniques

Plasma

  • 160 GHz Microwave interferometry
  • Cross-correlation spectroscopy (CCS)
  • Laser induced fluorescence spectroscopy (LIF)
  • Laser photodetachment
  • Electrical probes
  • Emission/absorption spectroscopy
  • Phase-resolved optical emission spectroscopy (PROES)
  • Energy-resolved ion mass spectrometry (plasma monitoring)

Gas phase

  • IR-tuneable diode laser absorption spectroscopy (IR-TDLAS)
  • Threshold ionisation mass spectrometry
  • Electron attachment mass spectrometry
  • Neutral gas mass spectrometry
  • Broadband FTIR spectroscopy
  • Gas chromatography

Interface and thin films

  • Surface charge measurement (optical Pockels effect)
  • IR reflection absorption spectroscopy
  • Ellipsometry
  • Quartz crystal microbalance