Wide bandgap semiconductors contribute essentially to new applications in the field of photonics and power electronics. Oxide crystals are not only used as a dielectric or as optical material; their semiconducting or ferroelectric properties form the basis of novel oxide electronics that provides surpassing functionalities. The department of 'Dielectrics and Wide Bandgap Materials' is focused on the preparation of nitride, oxide, and fluoride bulk crystals for the fields of application mentioned above.
We work on the preparation of bulk crystals with unprecedented structural quality, and we develop material-specific growth technologies that might be transferred to industry. A key aspect is the control of electrical and optical properties through suitable techniques of growth, doping, and characterization. Our crystals are used e.g. in fundamental studies in material physics and as substrates in epitaxy for the preparation of novel devices.
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