Quantum Photovoltaics Theory

Welcome to the website of the theoretical nanostructure photovoltaics group @ IEK-5: Photovoltaik, Forschungszentrum Jülich GmbH. Our research is concerned with the development of theoretical descriptions and simulations of novel nanostructure based solar cell devices. For the micro- and mesoscopic picture, our approach relies on quantum-kinetic theories such as NEGF to cover the relevant physical processes of the photovoltaic device operation under full consideration of quantum effects present at the nanoscale. In this way, photogeneration, photocarrier transport and recombination can be treated on equal footing for arbitrary combinations of low-dimensional absorber and conductor components. Applications include, e.g., III-V quantum well solar cells, silicon based quantum well and quantum dot superlattice solar cells, novel tunnel junction architectures for multijunction solar cells and quantum dot fluorescence for spectral concentration devices. More about our research can be found here.