Unlocking the Potential of Perovskite-Silicon Tandem PV: Insights into the Journey from Lab to Fab

As the balance-of-system costs rise within photovoltaic (PV) installations, achieving higher power conversion efficiency (PCE) has become critical for further reductions in overall PV system costs. With crystalline silicon technology approaching its practical efficiency limits, tandem architectures—particularly perovskite-silicon tandems—are emerging as the next major leap in solar cell performance. Perovskites offer a unique combination of high performance, tunable bandgap, and low-cost processing, enabling these tandems to significantly surpass the efficiency ceiling of single-junction c-Si cells.

However, the pathway to commercializing perovskite-Si tandem technology extends beyond incremental PCE improvements. Key challenges remain, including long-term stability, large-scale manufacturability, reproducibility, and high-throughput production. We are tackling these challenges through a comprehensive approach: optimizing device performance, enhancing perovskite heat and light stability, and simultaneously scaling up processes to accommodate commercial wafer sizes.

Our efforts are focused on developing high-throughput manufacturing techniques and improving process reliability to achieve consistently high yields. This work is essential for making perovskite tandems a truly viable and scalable solution for future solar energy needs. In this presentation, we will share our latest progress in advancing tandem PV technology, with particular emphasis on the rapid development of robust, scalable device stacks and the reliability of our materials and processes.

We will also highlight our expanded testing infrastructure, designed to evaluate large volumes of devices over extended durations, and present results from experimental studies conducted under stringent light and thermal stress conditions. Coupled with computational modeling and simulation, these data provide valuable insights into the predicted operational stability and performance of our perovskite products across diverse geographical environments.