German-led consortium aims for 33% efficient perovskite-silicon solar cell

• The Institute for Solar Energy Research Hamelin (ISFH), the Karlsruhe Institute of Technology (KIT) as well as the Institute for Materials as well as Components in Electronics at the University of Hannover, in addition to Centrotherm, Singulus, Meyer Burger as well as Von Ardenne are associated with a study project focused on achieving a 27% conversion effectiveness for silicon solar cells based on perovskite.

It is called '27plus6 ′: A brand-new research study project bringing together the know-how of top German and Swiss technology firms as well as research study institutes, with the objective of developing a 33%-efficient perovskite-silicon tandem solar cell suitable for mass production.

The project includes Germany's Institute for Solar Energy Research Hamelin (ISFH), the Karlsruhe Institute of Technology (KIT) and the Institute for Materials and also Components in Electronics at the University of Hannover, in addition to PV equipment providers Centrotherm, Singulus, Meyer Burger as well as Von Ardenne.

The consortium stated that it intends to attain the guaranteed conversion performance under typical test conditions, and that is also looking for to reach a higher power return, meant to speed up commercial application.

The scientists discussed that the real solar range adjustments throughout the day and also varies seasonally as well as with geographical location. And for tandem cells, where the various layers might carry out differently relying on the light conditions, adjusting the present for ideal output from both cells in a typical two-terminal setup can be an uphill struggle.

Study projects have also explored four-terminal configurations as a means around this trouble, but these show up ahead with their own collection of complications. The "27plus6" project will certainly focus on establishing 3-terminal cells, which it states are characterized by better effectiveness in regard to adjustments to the solar spectrum. Incorporated with innovative brand-new cell affiliation concepts, the consortium is encouraged this approach will lead to higher energy yields from the cells.

The ISFH brings its expertise in the growth of back-contacted silicon solar cells with passivating calls to the project, and intends to more create the deposition of perovskite absorbers on distinctive surfaces by means of co-evaporation. PACKAGE, meanwhile, adds its know-how in the field of perovskite cell advancement, for instance, the awareness of two-dimensional perovskite crystal structures.

The tools vendors will certainly bring their significant understanding of automation procedures to the group. Centrotherm in particular states that it wants to further develop its processes for the deposition of passivating call layers, as well as optimize these with a view to industrial-scale manufacturing.

According to the partners, with the presentation of a considerable increase in energy yield compared to today's silicon solar cells, the solar power manufacturing prices in Germany can drop listed below EUR0.04/ kWh. Thanks to the high efficiency, special photovoltaic or pv applications such as integration in electric cars are additionally conceivable.

* the short article was amended on Aug. 24, 2020, to show that the scientists intend to get to a 33% performance and also not, as we previously reported, a 27% efficiency.