Roksolana Kozak

Roksolana studied Chemistry at the Ivan Franko National University of Lviv in Ukraine, with research exchange to Technical University of Munich (TUM), Germany (graduated in 2007 with Honors Diploma). In 2011 she received a doctoral degree in Inorganic Chemistry at Ivan Franko National University of Lviv, Ukraine. Thereafter she worked as a postdoctoral fellow at the Laboratory of Crystallography, ETH Zurich. Since 2014 Roksolana has changed her focus to Electrical Engineering and started a PhD project in the Department of Information Technology and Electrical Engineering, ETH Zurich, while doing research at the Electron Microscopy Center, Empa.


Roksolana’s research interests focus on structural studies (XRD, TEM, SEM, AFM etc.) of metals/alloys and semiconductors for defining the optimum composition and fabrication conditions in order to fulfill mechanical and electrical requirements for their successful use in functional and (nano-)electronic devices. Currently, she is working on the investigation of CaAs/Si nanostructures (including the development of algorithms for automatic detection and characterization of crystal defects formed during their epitaxial growth) towards to the production of high sensitivity optoelectronic devices in submicron scale.

Research Interests
  • Synthesis of alloys, intermetallic compounds (e.g. arc-melting, induction method) and semiconductor nanomaterials (MOVPE, CVD)
  • Single-crystal and powder X-ray diffraction methods
  • Phase diagram constructions
  • Scanning transmission electron microscopy (STEM) study of interfaces and strain distribution in III-V semiconductor nanomaterials
  • Electrical and magnetic characterization of (nano-)materials
  • Electronic (nano-)devices
Professional Career

2014 – 2018           PhD student at the Department of Information Technology and Electrical Engineering, EMPA/ETH Zurich.
                                 Thesis: Integration of III-Vs on silicon: from the micron to the nanometer regime

2012 – 2014           Postdoctoral researcher, Laboratory of Crystallography, ETH Zurich, Switzerland

2011 – 2012           Teaching assistant/Lecturer in Chemistry at the Department for Foreigner Students, Lviv Medical University, Ukraine

2011 – 2012           Part-time assistant on the bibliography and crystal structure part of the Pauling File / Person’s Crystal Data database, Scientific-Consulting Company “Structure - Properties”, Ukraine

2007 – 2011           PhD in Inorganic Chemistry (summa cum laude), Ivan Franko National University of Lviv.
                                Thesis: Synthesis and crystal structure of phases in the R-Ag-Al-Ge systems (R = rare-earth element of the cerium subgroup)

2010                        Internship at the Institute of Low Temperature and Structure Research of the Polish Academy of Sciences, Poland

2006 – 2007           M.Sc. in Chemistry (honors), Ivan Franko National University of Lviv, Ukraine

2007                        Internship at the Technical University of Munich, Germany

2002 – 2007           Studies in Chemistry, Ivan Franko National University of Lviv, Ukraine