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Research Group

Perovskite Photovoltaics

The IMT pursues the research and development of next generation perovskite thin-film photovoltaics and perovskite multijunction photovoltaics. Our work involves the fabrication, characterization, simulation and understanding of the device physics of this technology.

Perovskite Thin-Film Photovoltaics

Perovskite thin-film photovoltaics can dramatically reduce the cost of next-generation photovoltaics. Only a few years after their discovery, perovskite solar cells have demonstrated already record efficiencies close to those of the well-established and market dominating photovoltaics. Whereas material costs are already intrinsically extremely low for perovskite photovoltaics, it is in particular the prospects of low-cost solution-based fabrication that triggers enormous expectations into this technology.

For more information see Ulrich Paetzold.

 
Multijunction Perovskite/Si and Perovskite/CIGS Photovoltaics

Multi-junction solar cells employing a perovskite top solar cells and a crystalline-silicon (c-Si) or copper indium gallium diselenide (CIGS) bottom solar cell, bear the exciting potential to surpass the efficiency limit of market-leading single-junction c-Si solar cells. The key advantage of such a multijunction solar module lies in the efficient exploitation of the solar spectrum. The high energy light is harvested at high efficiency in the perovskite top solar cell while the low energy light is harvested in the silicon bottom solar cell.

For more information see Ulrich Paetzold.