Doktorandenstelle - Arbeitsgruppe Elektronenmikroskopie

The Leibniz Institute for Crystal Growth (IKZ) is a leading research institution in the area of crystal growth of technologically important materials for micro-, opto- and power electronics, sensors, optics and laser technology. This ranges from explorative fundamental research to pre-industrial development. It is part of Forschungsverbund Berlin and a member of the Leibniz Association. You may find more details at www.ikz-berlin.de.

 

Commencing as soon as possible there is an opening for a PhD position

for the topic: Transmission Electron Microscopy Studies on Phase Formation in Group III- Sesquioxides

 

IKZ has excellent expertise and facilities for the characterization of low-dimensional semiconductors, among them an aberration corrected TEM/STEM and a computer cluster for performing STEM and molecular dynamics simulations. Recently we are extending our activities in the field of Group III-Sesquioxides.  Group III sesquioxides oxides are distinguished by the fact that they can be efficiently n-doped despite a wide band gap that ranges from 2.7 eV for In2O3 over 4.8 eV for Ga2O3 to 8.9 eV for Al2O3. Possible fields of applications include unipolar devices like field effect devices, switching memories, and UV photodetectors. Full exploitation of these properties requires band gap engineering of these binary compounds through a formation of solid solutions of these oxides.

The main objective of the thesis to contribute by transmission electron microscopy investigations to a fundamental understanding of phase formation in this materials system. This comprises methodological developments to characterize parameters like coordination numbers and bond distortions as well as experimental studies on phase diagrams. The project on phase formation is performed in close collaboration with groups at Paul-Drude Institut and IKZ, who are performing growth and the Fritz-Haber-Institut providing ab-initio calculations.

The PhD project is performed in the framework of the Leibniz Science Campus GraFox - Growth and fundamentals of oxides for electronic applications, which seizes to fuse the excellent individual activities and competencies in Berlin on one of the most prospective material systems for future electronic and (renewable) energy applications. Through collaborative research and publications, we aim to establish an internationally renowned key region in Berlin. Details can be found on http://grafox.pdi-berlin.de.

Applicants should hold a Diploma or an MSc degree in physics, crystallography, materials science or a related discipline with a strong experimental background. Excellent knowledge of basic physics and of solid state physics are necessary. Expertise in high-resolution transmission electron microscopy and image simulation are highly desirable. We are looking for a team player with a high level of communication skills and the assertiveness to work in a highly motivated team of researchers and technicians.

The position is available by September 2016 and its duration is limited to three years. Payment is according to TVöD (Treaty for German public service). IKZ is an equal opportunity employer. Therefore, female candidates are encouraged to apply and will be preferred in case of adequate qualification. Among equally qualified applicants preference will be given to disabled candidates.

Please submit your application by August 1st, 2016, to:  

Dr. Martin Albrecht:
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+49 30 6392-3094
Leibniz-Institut für Kristallzüchtung,
Max-Born-Straße 2,
D-12489 Berlin, Germany

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