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Anish Priyadarshi1 Jia Haur Lew1 Sudhanshu Shukla1 Subodh Mhaisalkar1 Frederick Prehn1 Nripan Mathews1

1, Nanyang Technological University, Singapore, , Singapore

To date, solid-state perovskite solar cells (PSCs) have been developed with power conversion efficiency exceeding 22%<span style="font-size:10.8333px">.</span> PSCs comprise entirely of Earth-abundant elements, can be manufactured in various geometries, can be solution-processed, and possesses ideal solar cell material characteristics. This meteoric rise in PCEs has created a renaissance in studies on perovskites for light-emitting diodes, lasing, photodetectors etc. In addition to its outstanding performance, perovskite solar cell have a simple and low-cost solution-based fabrication process which opens the possibility of commercialization. We have demonstrated upscaling of monolithic perovskites solar device with high efficiency and stability using solution based processing and low cost electrode materials. Monolithic devices of size 10cm x 5cm (active area 30cm2) and 10cm x 10cm (active area 70cm2) with efficiency 10.5% and 10.74% have been realized. Fabrication of large area solar cells were done by fully screen-printed process along with slot die coating of perovskite solution. Perovskite infiltration process and quality of carbon (conductivity and surface area) plays key roles in improving the device performance. Recent progress in the pursuit of 900 cm2 monolithic devices and a 3S-3P module comprised of 10x10 substrates encapsulated in a window with junction box will also be covered.

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