PhD position

Optically Detected Magnetic Resonance Imaging of Direct Band-Gap Solar Cell Materials


In this research project, we will develop two complementary techniques for studying semiconductor materials with direct band gaps. This will lead to an improved understanding of processes that limit the efficiency of solar cell materials and may, in the long run, contribute to the development of better solar cells with higher efficiency. The techniques are based on magnetic resonance (electron-spin and nuclear-spin magnetic resonance) but use optical pumping for enhancing the spin polarization and optical detection for increasing the sensitivity and allow spatial localization. Ot achieve spatial resolution, we will use spatial encoding via the Larmor frequency on the basis of pulsed magnetic field gradients. We envision that this project will contribute towards the long-term goal of economical and eco-friendly devices that harvest solar energy at the highest possible efficiency. Earlier results from this project are available at

The ideal candidate for this position has a solid background in optical spectroscopy and / or magnetic resonance, a high motivation for realising advanced experimental techniques and a keen interest in the properties of high-quality semiconductor materials. For additional information or to apply send email to



Dieter Suter | Tel: (+49 231) 755 3512

Fakultät Physik | Fax: (+49 231) 755 3509

Technische Universität Dortmund |

D-44221 Dortmund | e-mail:

Germany |