Dueto the highpowerconversion efficiencies, fast and cost-efficient production, the furtherdevelopment ofsolution-processable perovskitesolar cells (PSCs) can enable this promising solar energy technology to reach the required yottawatts ofrenewable energy capacity. There is a great probability that PSCs will occupythe photovoltaic market. Before that, thecertain limitations, including the lack of cost-effective hole-transporting materials (HTMs) which would enable toenhance the limited PSC stability, should be overcome. Our consortium aims to develop cost-efficientHTMs and investigate the fundamental and applied aspects of perovskite/HTM/metal interfaces in relation todevice stability. The overall aim of T-i-PSCer project is to boost the scientific excellence and innovationcapacity of three ECIU universities and their non-academic partner in developing interface-friendly HTMs forstable PSCs with the commercial potential. The additional beneficial result of the project is theestablishment of a brand-new collaboration between the three partners in theECIU priority research area, i.e.energy and sustainability.