- Details
Dr. Simon Hübner "Plasmas in the Atmosphere".
Plasmas are natural phenomena that have always held a great fascination for people. Be it the dreaded lightning, mysterious auroras or the warming sun, Dr. Simon Hübner presented many interesting backgrounds and details in his public lecture "Plasmas in the Armosphere". After the lecture there was a lively discussion and many questions were asked.
- Details
EP5
Marc van der Schans
Marc van der Schans from the Department of Applied Physics, Elementary Processes in Gas discharges (EPG) at the TU Eindhoven (Netherlands) is visiting PhD student Patrick Böhm (Experimental Physics V) during the week of January 25-29, 2016. This week marks the end of a collaboration already started in 2015. The goal is to apply the electric field measurement technique, which is being further developed by Patrick Böhm as part of his dissertation at Ruhr-Universität, to a plasma bullet discharge, which is also being further developed and extensively analyzed by Marc van der Schans as part of his dissertation. Due to the positive outcome of the previous cooperation weeks, a corresponding setup will now also be set up at the TU Eindhoven.
link to Marc von der Schans
- Details
Imagefilm des SFB-TR 87
The SFB-TR87 is concerned with research into the synthesis of nanostructured functional layers using high-performance plasmas. The goal is to find a knowledge-based approach that covers the whole chain from energy supply to plasma properties to material and to understand the dependencies in detail. The SFB-TR87 has now released its first image film to give more insight into how it works. Dr. Christian Maszl was involved in writing the script and explains his contribution to the SFB in the video.
- Details
Start of the lecture series Alles Plasma with Dr. Christian Maszl "Plasma to go".
The new lecture series "Alles Plasma!" started at the event center "BlueSquare" of the Ruhr-Universität Bochum. Moderated by Jun.-Prof. Jan Benedikt, researchers from the Research Department Plasma present current research to the interested public.
Dr. Christian Maszl started the series with his lecture "Plasma to go". In a humorous way, the audience was taken on a tour through the world of plasmas. In passing, people learned where we encounter plasmas more or less hidden in everyday life.
- Details
EP5
Prof. Dr. Khristo Tarnev
Prof. Dr. Khristo Tarnev, Associate Professor at the Department of Applied Physics of the Technical University Sofia, Bulgaria, will visit Prof. Dr. Uwe Czarnetzki at the Chair of Plasma and Atomic Physics in the time from 24.01.-30.01.2016.
link to Khristo Tarnev
- Details
18TH WORKSHOP ON THE EXPLORATION OF LOW TEMPERATURE PLASMA PHYSICS
The WELTPP-18 was held at the old convent Rolduc in Kerkrade December 3rd/4th, 2015.
The aim of this workshop is to create a forum for young low temperature plasma scientists, that is graduate students and postdoctoral researchers, to meet, learn from each other, exchange knowledge, present results and establish new contacts.
The emphasis is on the presentation of the work of the people new in this field. The scientific program consisted of 17 contributed talks, encompassing the topics fundamental processes, magnetized discharges, surface interactions, plasma chemistry and diagnostics. From our department W. Breilmann, J. Golda and G. Willems were giving talks. Additionally, an invited evening lecture by G.J.M. Hagelaar (LAPLACE) was held and there was ample time for discussions during 2 poster sessions, where B. Biskup, A. Eitrich, K. Grosse, M. Mokhtar Hefny and P. Preissig presented their posters.
link to WELTPP 2015
- Details
EP5
Prof. Dr. Hiroki Kondo
Prof. Dr. Hiroki Kondo of the Plasma Nanotechnology Research Center (PLANT) / Hori-Sekine Lab, Dept. of Elect. Eng. & Comp. Sci. of the Graduate School of Engineering at Nagoya University in Japan will visit Prof. Dr. Uwe Czarnetzki at the Chair of Plasma and Atomic Physics from February 25-27, 2016.
link to Hiroki Kondo
- Details
Junior scientists event WELTPP-18
The 18th Workshop on the Exploration of Low Temperature Plasma Physics (WELTPP-18) will be held ion December 3rd/4th, 2015 at the old convent Rolduc in Kerkrade. This workshop is intended for active scientists working in the field of low temperature plasma physics
http://www.phys.tue.nl/PMP/WELTPP/index.php
- Details
EP2
Prof. Remi Dussart & Philippe Lefaucheux
From December 8-11, 2015, Prof. Dr. Remi Dussart and his technician Philippe Lefaucheux from GREMI [Groupe de Recherches sur l'Energetique des Millieux Ionises], Université Orléans, France will join Dr. Volker Schulz-von der Gathen and Judith Golda at the Chair of Experimental Physics II. The two French colleagues will bring their latest microplasma sources, which will then be studied here with high temporal resolution after installation. Phase-resolved measurements of new metal-based microplasma arrays were made during the visit. The visit has been held as part of the PROCOPE exchange.
- Details
EP2
PROF. STÉPHANE LUCAS
Prof. Stéphane Lucas from Namur University, Belgium, will visit the Chair of Experimental Physics II on Thursday, November 26, 2015, to present the first results of our cooperation. At 14:00 he will give a talk on "On the understanding of state of the art deposition methods like HiPIMS in order to predict film properties by Monte Carlo simulations" in seminar room NB 5/158.
We would like to invite you to attend! From our side titanium films on silicon and the corresponding IEDFs were delivered during HiPIMS. The determination of the morphology, as well as the density and the elastic modulus and the comparison with the model calculations was done by his team.
Abstract:
S. Lucas1, P. Moskovkin1, A. Pflug2, C. Maszl3, A. von Keudell3
1 The University of Namur, Physics of Matter and Radiation (PMR), 61 rue de Bruxelles, B-5000 Namur, Belgium
2 Fraunhofer Institute for Surface Engineering and Thin Films IST, Bienroder Weg 54e, 38108 Braunschweig,
Germany
3 Ruhr-Universität Bochum, Fakultät für Physik und Astronomie, Universitätsstraße 150, D-44780 Bochum
Substrate ion bombardment during deposition plays a major role in thin film microstructure evolution. This has been one of the driving force for the development of state of the art deposition methods like high power impulse magnetron sputtering (HiPIMS) plasmas that generate energetic metal ions at the substrate as compared to conventional direct current magnetron sputtering (dcMS).
In the present study we investigate, by means of computer simulation and experimental validation, the growth of Ti films deposited by such a technique. The simulation work is done using NASCAM, which is a computer program based on kinetic Monte carlo of atomistic deposition. Kinetic Monte Carlo method allows to follow the evolution of large system of particles during longer times, up to 103 s, with relatively low computational effort compared to other techniques, like Molecular dynamic or even other Monte Carlo methods. This Virtual CoaterTM has been recently completed with a mechanical plugin to estimate the mechanical properties of films grown in silico. The code is built to calculate the effective Young’s moduli and Poisson’s ratios of a porous multilayered structure, using the classical formula "Rule of Mixture" (ROM), considering the Voigt’s model (longitudinal components) and Reuss’ model (transversal components).
Special attention is given to investigate the role of high energy particles flux on the properties of Ti films deposited by HiPIMS. Various films were grown at various power densities and for each, the energy distribution of the sputtered Ti+ and Ti2+ ions at the substrate were measured with a temporal resolution of 2 μs experimentally. Special care was given for conditions below and above the runaway regime. The surface morphology (AFM), density (RBS), and Young modulus (Nano-indentation) of the deposited films are compared with the simulated one.
- Details
RAPID SYMPOSIUM: CNRS, PERPIGNAN, FRANCE
From October 26-29, 2015, the RAPID Symposium has been held in Perpignan, France.
link to RAPID-ITN