NCPRE has a major activity in the area of Perovskite Solar Cells (PSCs) and Perovskite-on-silicon Tandem Solar Cells. PSCs have already touched the limit of commercial silicon solar cells and PSCs hold great promise for the future photovoltaic industry due to their low-cost fabrication. However, the scalability and stability are still being addressed. As the active area of the solution processed spin coated PSCs increases, the leakage (or dark) current increases due to increased shunt paths, which lowers device efficiency. However, these shunt paths could be suppressed by other control deposition techniques, such as sublimation of the perovskite salts. Apart from the perovskite absorber deposition, the hole transport layer in the p-i-n device architecture significantly influences the leakage current due to perovskite crystallization growth and band energy alignment. In this work, Prof. Dinesh Kabra's group at NCPRE used a composite of self-assembled monolayer (SAM) and conjugated polymer-based hole transport layer to minimize the dark current. These devices also act as light sensors due to their high responsivity in the UV-visible range. Therefore, this work discusses how the photodetection performance will be influenced by the scalability of the device active area. This work, titled "Low Dark Current with High Speed Detection in Scalable Perovskite Photodetector" by K. Hossain et al. was recently accepted in the journal Device (Cell Press): 100513 August 21, 2024 – Open access.