Materials Technology

Among various device designs of perovskite solar cells (PSCs), carbon back contact electrode based mesoscopic perovskite solar cells (CPSCs) offer clean room free production, abundant availability of integrated materials, scalability and inspiring stability in different simulated and natural environmental conditions 1-5. I have been developing this promising solar cell technology and have been involved in its scaling up in collaboration with academic and industrial partners. In my talk, I will present and discuss the interesting results related to this solar cell technology about: 1. The replacement of manual infiltration of perovskite precursor ink with automated inkjet infiltration method, which significantly improved the photovoltaic performance reproducibility 1. 2. First ever demonstration of exceptional stability of these CPSC under intense UV light illumination 5. 3. A breakthrough discovery regarding perovskite crystals growth in the thermo-humid environment, which was observed in an automated humidity chamber and consequently contributed for a drastic improvement (> 50%) in the solar-to-electrical conversion efficiency as well as 4. Our proceeding steps towards scaling up this low-cost solar cell technology over 20 x 20 cm2 FTO-Glass substrates size. Our results provide an opportunity to realize low-cost PV factories as decentralized energy production units in each EU country, contrary to highly expensive Si-PV counterparts.