Applying laser patterning, CHEOPS has succeeded to produce solar modules with a ratio between active and total substrate area of 95% and an efficiency of 9.3%. These values are new records for large area (14.5 cm²), fully laser-processed perovskite devices. This work is a major step towards the industrialization of perovskite-based solar technology. Results have been published in the IEEE Journal of Photovoltaics:

Palma, A., Matteocci, F., Agresti, A., Pescetelli, S., Calabro, E., Vesce, L., Christiansen, S., Schmidt, M. and Di Carlo, A. (2017). Laser-Patterning Engineering for Perovskite Solar Modules With 95% Aperture Ratio. IEEE Journal Of Photovoltaics, PP(99), 1-7. http://dx.doi.org/10.1109/jphotov.2017.2732223

CHEOPS members participated at the International Conference on Hybrid and Organic Photovoltaics (HOPV 17, 21-24 May 2017) and at the international 2017 IEEE Photovoltaic Specialists Conference (2017 IEEE PVSC-44, 25-30 June 2017). Presentation slides and a poster from these conferences are available for download (see also Results–Scientific Publications):

• 2017 IEEE PVSC-44: Perovskite/Silicon Tandem Solar Cells: Challenges Towards High-Efficiency in 4-Terminal and Monolithic Devices. Werner, J. et al. | download conference paper
• HOPV17: Highly Efficient Metal Halide Perovskite Mini-modules Through A Full Laser Patterning Process. Soo-Jin Moon | download the presentation slides