Title | Challenges and advances in scaling-up perovskite solar cells using industrially compatible wet deposition techniques
Date | June 12, 2022
Abstract | Impressive results have been obtained in the field of perovskite solar cells (PSCs) in over a decade of intense research with power conversion efficiencies exceeding 25%. However, poor long-term stability, and obstacles in scale-up currently hold back PSCs from entering the photovoltaic market. This webinar discusses challenges encountered in up-scaling the perovskite technology to the module level and highlights recent progress achieved at IPVF. In a first part, the deposition of tin oxide used as an electron extraction layer is established using chemical bath deposition. Applying this simple low-temperature deposition method, highly homogeneous SnO2 films are obtained in a reproducible manner on large surfaces. In a second part, the deposition of the photoactive perovskite layer is developed using sequential slot-die coating on up to 10×10 cm2 substrates. This industrially relevant 2-step deposition technique allows for the growth of high-quality dense perovskite thin films with large grains. Integration of the SnO2 and perovskite layers into mini-modules with aperture areas of up to 40 cm2 is discussed.
