ENG: Scientists from Helmholtz Zentrum Berlin (HZB) could significantly improve on the efficiency of perovskite/silicon tandem solar cells. Prof. Steve Albrecht and his team used an advanced perovskite composition with a very smart interface modification. The lead authors, postdocs Dr. Silvia Mariotti, and Dr. Eike Köhnen, developed an interface modification to reduce charge carrier recombination losses and applied detailed analysis to understand the specific properties of the interface modification. These developments were then successfully implemented in tandem solar cells, and with help of Master’s student Lea Zimmermann, combined with further optical improvements.
