Gallery of pictures from 2008
Transmission electron-microscopical picture of a multilayer sample, showing the cross section. Light layers are composed of Sc2O3, dark layers of YSZ. In the upper right corner, the sapphire substrate can be seen on which the multilayer was deposited by pulsed laser deposition. In the Institute of Physical Chemistry multilayer systems are used as model systems for the investigation of interfacial structures and their impact on the electrochemical properties of ionic conductors. Preparation: N. Schichtel, University of Gießen. Picture: Prof. D. Hesse and N. D. Zakharov, MPI Halle
New 4-Needle Probermodule and heating stage for the SEM of the Institute of Physical Chemistry fabricated by Kammrath & Weiss. Combining the Probermodule and the heating stage it is possible to characterize samples up to 800 °C by electrochemical methods (e.g. cyclic voltammetry, impedance spectroscopy). Needles are made from tungsten (W) or Pt/Ir alloy, tip diameters down to 100 nm are at present available. The needles can be placed on samples with a precession of 10 nm. Additionally two static connectors are present. Picture submitted by K. Peppler
Heating stage of the secondary ion mass spectrometer at 600 °C. The sample is fixed in the middle with a frame. At the top of the image the outlet of the ion gun and the entrance of the analysor is shown. Picture submitted by H. Pöpke and M. Rohnke
The picture shows the new MBraun Glove-Box of the Institute of Physical Chemistry. The Box is filled with dry argon atmosphere. This allows us to handle moisture and oxygen sensitive materials in the box. In our case this is materials for Lithium-Ion-Batteries and Ionic Liquids. The box has water and oxygen sensors which constantly measure the water and oxygen concentration in the box atmosphere down to the low ppm region. In the following weeks we will install a coulometric Karl-Fischer-Titrator in the Box. With this titrator we can precisely determine the water content of liquids and solids which only contain a few ppm of water. Picture submitted by H. Buschmann
A view into the ion polishing device during a carbon sputter coating process. In the centre the first argon ion gun is visible (blue-violet plasma), the second gun is on the upper edge of the picture. The sample is mounted between the two ion guns, together with the sputter coating tool. Here a standard (glass) sample was used. Picture submitted by N. Schichtel
The picture shows the ERASMUS exchange student K. Zalewska (on the right) taking a sample out of the Gießen II chamber belonging to the Pulsed Laser Deposition System (PLD). She is guided by N. Schichtel (on the left). The PLD serves for preparing thin film samples either from metals or oxides. Also, multilayered samples can be obtained. P icture taken by S. Steinmueller
"End of term program": The WG-Janek during a collective lunch on the science campus at the end of the summerterm 2008 of the Justus-Liebig-University Giessen. (Some workgroup members cannot be seen on the picture)
The picture shows the students K.-H. Tran Ba (BSc materials science, on the left) and K. Sann (Diploma chemistry, on the right) working together at a glovebox of the Institute of Physical Chemistry. With the reorganisation of the degree programmes at the Justus-Liebig-University of Giessen students of different subjects get together in the laboratories. In the Janek group chemists, physicists and material scientists work toghether at different projects.
Reflecting surface of a sapphire single crystal substrate, coated with pulsed laser deposition. The colours are caused by interference effects which result from little changes in the thickness of the coating layer. Picture Submitted by N. Schichtel
October 6th - 8th 2008 the conference "Electrochemistry: Crossing Boundaries" organized by GDCh, DBG, Dechema, GfKorr and AGEF takes place in Giessen. The workgroups Janek und Schlettwein have organised most of the conference by themselves. The conference covers a variety of fields of electrochemistry. Picture submitted from K. Peppler
The RG Janek is active internationally. The picture shows Prof. Janek at the ICPP conference (International Congress of Plasma Physics) in Fukuoka/Japan. The conferece took place from September 8th to September 12th 2008. Prof. Janek was accompanied by S. Meiss, who also presented his results.
KOSEF provides foreign students with an opportunity f or short-term training in Korean universities. Through this program foreign students gain a sense of familiarity with Korean culture and Korean science and technology. This experience lays the groundwork for long-term research cooperation in the future. The picture shows C. Reitz, P. Hartmann and J. Reinacher (beginning at the left side) in front of the KOSEF banner. The three students had a two month long stay in korean university labs.
