TEAMUP: TANDEMS FOR EFFICIENT AND ADVANCED MODULES USING ULTRASTABLE PEROVSKITES A. PROJECT OBJECTIVES WE PROPOSE TO ESTABLISH TEAMUP, A DIVERSE PV CONSORTIUM, WITH MEMBERS STRATEGICALLY CHOSEN TO TARGET >28%-EFFICIENT PEROVSKITE/SILICON MULTIJUNCTION MODULES WITH STABLE OPERATION IN FIELD CONDITIONS. THE TEAM WE HAVE CHOSEN HAS A PROVEN RECORD OF PIONEERING RESEARCH ON PEROVSKITE TANDEM SOLAR CELLS.