Uwe Rau

Uwe Rau

Uwe Rau is a German physicist who has made important contributions to the physics of photovoltaic systems , in particular to the explanation of energy losses in thin-film solar cells and to the use of the reciprocity principle to characterize solar cells using electroluminescence techniques . This led to the development of this technology as a standard in research and industry.

Education & career

Rau studied physics from 1980 to 1987 at the University of Tübingen and the Université Claude Bernard in Lyon , France . He wrote both his diploma thesis (1987) and his doctoral thesis (1991) on the division of germanium in high magnetic fields and on nonlinear charge transport in semiconductors . He then moved to the Max Planck Institute for Solid State Research in Stuttgart , where he initially dealt with crystalline silicon solar cells. In 1995 he moved to Bayreuth , where he mainly worked on the component physics of Cu (In, Ga) Se2 solar cells . In 1997 he returned to Stuttgart to work at the Institute for Photovoltaics at the University of Stuttgart . In Stuttgart he continued his work on Si and Cu (In, Ga) Se2, but also began working on Grätzel cells and the fundamental aspects of luminescence in solar cells. In 2002 he completed his habilitation at the University of Oldenburg on the electrical transport properties of semiconductors and interfaces for photovoltaics. Since 2007 Rau has been a full professor at RWTH Aachen University and director of the Institute for Energy and Climate Research at Forschungszentrum Jülich . Since 2011 he has also been the scientific director of the HITEC graduate school at Forschungszentrum Jülich. He is currently director of JARA-Energy , (JARA = Jülich-Aachen Research Alliance), which coordinates research at Forschungszentrum Jülich and RWTH Aachen in the field of renewable energies .

Achievements

Rau is known for his contributions to the basic principles of photovoltaic energy conversion and to improving the understanding of the physics of solar cell components. Most important is his work published in 2007 on a reciprocity relation between photovoltaic quantum efficiency and electroluminescent emission of solar cells ( reciprocity relation between the photovoltaic quantum efficiency and the electroluminescence emission of solar cells ). It sets out the principle of reciprocity in order to derive fundamental relationships between the photovoltaic and the light-emitting mode of a semiconductor diode. This work has had a significant impact on the characterization of solar cells or modules using luminescence-based techniques. Uwe Rau has also contributed to the analysis of thin-film solar cells, with important work on the ideality factor, the metastability of electronic conduction in Cu (In, Ga) Se2, the stability and self-healing of photovoltaic components, and the passivation of grain boundaries in polycrystalline thin-film solar cells. He also contributed several research papers to understanding the limits of solar cell conversion efficiency, including the role of clutter and potential fluctuations, and the effects of light trapping on the Voc of solar cells.

Individual evidence

1. ↑ Uwe RAU. Retrieved on May 17, 2020 (German). 
2. ^ Research Center Jülich - Staff - Prof. Dr. Uwe Rau. Retrieved May 17, 2020 . 
3. ↑ Contact - JARA - Jülich Aachen Research Alliance. Retrieved May 17, 2020 . 
4. ^ Projects - JARA - Jülich Aachen Research Alliance. Retrieved May 17, 2020 . 
5. ^ Uwe Rau: Reciprocity relation between photovoltaic quantum efficiency and electroluminescent emission of solar cells . Ed .: Physical Review. ( fz-juelich.de [PDF]).
6. ^ Researchgate: Uwe Rau. Retrieved May 17, 2020 (English). 
7. ↑ Uwe Rau - Google Scholar Citations. Retrieved May 17, 2020 .