We focus our research on the investigation of novel photonicand electronic semiconductor materials and phenomena and thedevelopment of devices for key areas such as internet communication,data storage, displays, illumination, environmentalmonitoring and life sciences. These areas exhibit rapid economicgrowth and ample employment opportunities.

Our current research topics are:

Our materials basis is provided by pulsed laser deposition (PLD) for the growth of oxide semiconductors [such as ZnO, (Mg,Cd)ZnO, ZnMnO, ZnCoOZnO:(Ga,Al,N,Sb,...)], oxide semiconductor heterostructures and nanostructures. PLD is also used to grow ferroelectrics and high temperature superconductors.

Facilities are available for the characterization of structural,electrical and optical material properties, among them high-resolution X-ray diffraction, scanning force microscopy, transmission electron microscopy, IV- and CV-spectroscopy, admittance, DLTS, optical DLTS, Hall effect, optical transmission and reflection, photoluminescence, excitation spectroscopy, Fourier transform spectroscopy, cathodoluminescence, photocurrent microscopy, generalized spectroscopic ellipsometry from the mid-infrared to the UV. Photonic and electronic devices are processed and their properties can be characterized with several set-ups, incl. on-wafer testing up to 30 GHz and fA-regime.

Our methods are also used to characterize commercial materials and devices such as GaN wafers, InGaN lasers and various solar cells.