Institute of Solid State Physics

## Solid State Seminar - Winter 2019

 Wednesday 02 October 2019      PH 01 150 11:15 - 12:15 Quantum computation with micromachined ion trapsPeter Hadley The PIEDMONS (Portable Ion Entangling Devices for Mobile-Oriented Next-generation Semiconductor-technologies) project is a collaboration between Infineon, University of Innsbruck, and ETH Zurich. The project will explore quantum computation technologies for applications in atomi ... more Wednesday 16 October 2019      PH 01 150 11:15 - 12:15 Biological lasers inside live cells and tissuesMatjaž Humar, Jožef Stefan Institute and Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, Slovenia Photonic components integrated into live biological organisms have the potential to enable novel applications including ultrasensitive sensing and new imaging modalities. This perspective has motivated recent efforts in developing lasers that are made, in part or entirety, of bio ... more Wednesday 23 October 2019      PH 01 150 11:15 - 12:15 Charging of neutral solutes in waterDouwe Jan Bonthuis Owing to the small length scales involved, aqueous interfaces dominate the properties of colloidal materials suspended in water. Surface charges, in particular, control the stability of colloidal suspensions and the self-assembly and organisation of nanoparticles. Apart from char ... more Wednesday 30 October 2019      PH 01 150 11:15 - 12:15 Open Access PublishingGerlinde Maxl and Eva Babonichhttps://cloud.tugraz.at/index.php/s/K4n5mt8dSbL9Aie/download Wednesday 06 November 2019      PH 01 150 11:15 - 12:15 Photoacoustic TomographyGuenther Paltauf Photoacoustic tomography visualizes structures with optical absorption contrast that are hidden in optically opaque objects. It has great potential in medical imaging, where it can provide three-dimensional images of vasculature in biological tissue. Photoacoustic imaging uses th ... more Wednesday 13 November 2019      PH 01 150 11:15 - 12:15 Novel applications for dual comb spectroscopyBirgitta Schultze-Bernhardt, Institute of Experimental Physics & Institute of Materials Physics, TU Graz Dual Comb Spectroscopy combines high spectral resolution (relative resolution demonstrated up to 10$^-$$^1$$^1$) with broad spectral coverage (>> 10 THz) and short measurement times (down to microseconds). In the recent years, the young spectroscopic method has proven its capabi ... more Wednesday 20 November 2019      PH 01 150 11:15 - 12:15 Deposition and charactetization of coatings by Molecular Layer DepositionMartin Seiler, Advanced Materials Science Polycrystalline ZnO has already covered a wide range of applications for over 100 years, leading from facial powders, sunscreens and lubricant additives to catalysts, transparent conducting electrodes and piezoelectric transducers. The renewed interest is due to improvements in g ... more Wednesday 27 November 2019      PH 01 150 11:15 - 12:15 How (not) to presentOliver Hofmann, Institute of Solid State Physics I will briefly present some do's and don't of giving presentations. We will discuss what the expectations of the presenter and the audience are, how short talks differ from long presentations or thesis defenses, and how slides should be structured so that they are easy - and conv ... more Wednesday 04 December 2019      PH 01 150 11:15 - 12:15 Describing complex intermolecular interactions for structure searchFabian Weissenbacher, Institute of Solid State Physics, Advanced Materials Modelling Group Wednesday 11 December 2019      PH 01 150 11:15 - 12:15 Automatic Peak FinderClemens Tschernay Grazing Incident X-Ray Diffraction (GIXD) is a widely used tool to analyse crystalline thin films. For the evaluation of GIXD data the position of the diffraction spots is of great importance. So an accurate procedure to find diffraction peaks with their exact position is of utmo ... more Wednesday 18 December 2019      PH 01 150 11:15 - 12:15 Electron TomographyArmin Zankel / Georg Haberfehlner, Institute of Electron Microscopy and Nanoanalysis, TU Graz ***** Tomographic methods using electron microscopes. ***** In the last two decades the Institute of Electron Microscopy and Nanoanalysis (www.felmi-zfe.at) was involved in the development of several tomographic methods using both the scanning and the transmission electron mic ... more Wednesday 08 January 2020      PH 01 150 11:15 - 12:15 Cryocharacterization of CMOS devicesPaul Stampfer This master thesis is part of the PIEDMONS project, that aims at the development of miniaturized and portable ion traps. Such ion traps have many possible application (quantum computing, GPS-free positioning, ion clocks to name a few) and the traps are most likely operated at cry ... more Wednesday 15 January 2020      PH 01 150 11:15 - 12:15 Influence of the On-Chip Signal-Metallization Routing Topology on Self-Heating in Integrated Power TechnologiesChristian Kovacs Today’s state-of-the-art integrated bipolar-CMOS-DMOS (BCD) power technologies employ highly optimized DMOS transistors with extremely low area-specific on-resistance. This ensures high current capability at minimum area requirements, however, this comes at the expense of in ... more Wednesday 22 January 2020      PH 01 150 11:15 - 12:15 Dynamic and static degradation of pGaN HV devicesDominik Wieland Galium nitride transistor are a promising replacement for conventional silicon based transistors in power conversion applications, which makes them an interesting topic for industry and research. The topic of the presentation will be an introduction on the concepts of the hig ... more Wednesday 29 January 2020      PH 01 150 11:15 - 12:15 Fabrication and characterization of photonic crystal structures for gas sensor applicationsJasmin Spettel The guiding of infrared radiation via waveguides is of great interest for a wide range of applications, such as absorption sensing in the infrared spectral range. Highly integrated gas sensors use the evanescent field of the guided radiation in order to measure for example the CO ... more Wednesday 05 February 2020      PH 01 1 50 11:15 - 12:15 Viscoelastic behavour of paperFelix Hajek The border between the elastic and the plastic region of UNUT paper has been investigated with the result that no real elastic region exists. Two theoretical paper models has been inproved with the experimental data obtained at various relative humidities. One based on plasticit ... more Friday 07 February 2020      PH 01 150 11:15 - 12:15 Theoretical Insights into the Phenomena of Exciton Creation and Charge Separation in Organic Solar CellsDemétrio Antônio da Silva Filho, Institute for Advanced Studies, University of Cergy-Pontoise, Cergy-Pontoise, France and Institute of Physics, University of Brasilia, Brasilia, Brazil One of today's big challenges to Material Scientists is how to make cheaper and more efficient photovoltaic panels. Solar Cells that use organic molecules as active materials, known as Organic Solar Cells (OSCs), are promising candidates as they can be made lighter, cheaper, and ... more Wednesday 12 February 2020      PH 01 150 11:15 - 12:15 Epitaxial Growth of III-V nitrides by MOCVD for green and UV LEDsNorzaini Zainal, Universiti Sains Malaysia At this point, green and UV LEDs fail to show the same level of efficiency as blue LEDs. This talk will focus on discussing the reasons behind this problem and subsequently, presenting several approaches that have been done at Universiti Sains Malaysia (USM)in order to overcome t ... more