Corporate Laboratory Group

This group hosts, manages and operates the REC@NUS Corporate R&D Laboratory for Next Generation Photovoltaics project that started at SERIS on 1st November 2022. The group focuses on the development and commercialisation of two-terminal (2T) perovskite-silicon tandem solar cell technologies. The key research areas are (1) high-throughput and ultra-fast deposition methods to enable > 30% efficiency for industrially relevant large-area (≥ 244 cm²) 2T perovskite-silicon tandem solar cells with good long-term stability, (2) tackling process and equipment upscaling challenges to reduce the barriers to industrial manufacturing of perovskite-silicon tandem cells, and (3) establishing rapid metrology and monitoring techniques suitable for industrial production lines to enable reliable process control methods for 2T perovskite-silicon tandem solar cell manufacturing. The heart of the Corporate Laboratory project is a dedicated 200-m² zone at SERIS that houses a state-of-the-art R&D pilot line for ultra-fast deposition of perovskite top cells on large-area silicon bottom cells with sizes of up to G12 (210 mm x 210 mm). The group also utilises the Silicon cleanroom lab where heterojunction bottom cells are being made using large industrial Cz silicon wafers. The group works in close partnership with local solar cell & module manufacturer REC Solar, and collaborates with external research teams (e.g. at Nanyang Technological University, NTU) as well as several equipment, automation and materials companies to establish a leading ecosystem for tandem photovoltaics in the region.