PVTIME – Suzhou Fangsheng Optoelectronics has achieved a significant breakthrough in photovoltaic technology by fabricating perovskite-silicon tandem solar cells using its unique all-dry process.
These cells have an energy conversion efficiency of 30.43%, a Voc of 1.891 V, a Jsc of 20.19 mA/cm² and an FF of 79.68%. This sets a new domestic record for dry-process tandem solar cells. The firm has also achieved a complete breakthrough in single-junction, all-evaporated perovskite cells, successfully validating efficiency from small, laboratory-scale samples to large, mass-production grade substrates. These milestones represent significant progress in the industrial application of dry processes and pave the way for the large-scale commercialisation of perovskite PV technology.
Fangsheng’s technical foundations lie in the OLED sector. Academic and industrial leadership comes from Academician Li Shutang and Professor Liao Liangsheng. The team initially focused on the all-dry vacuum evaporation process for the OLED industry, amassing invaluable experience in mass production equipment and process development. This industry-proven dry process core technology is now being systematically applied to the perovskite PV field. The company specialises in the R&D, manufacturing and sales of vacuum evaporation systems for OLED and perovskite cells. Its product portfolio covers the research, pilot and mass production stages, building a solid technical and equipment foundation.
The breakthrough in achieving 30.43% efficiency for all-dry perovskite-silicon tandem cells, combined with the full-size, high-efficiency validation of all-evaporated single-junction cells ranging from 0.1 cm² laboratory samples to 200×200 mm² mass-production grade substrates, provides solid evidence of the industrial feasibility of the dry process route. These achievements demonstrate the outstanding scalability, robustness and production line compatibility of the all-dry process, while also delivering high performance as a core attribute essential for perovskite technology to transition from laboratory development to GW-scale production lines.
By leveraging its dual leading advantages in vacuum evaporation equipment and all-dry processes, Fangsheng is advancing the perovskite PV industry through multiple technical paths and full-size efficiency validation. By bridging the critical gap from laboratory-scale fabrication to industrial mass production, the company is injecting strong momentum into the global PV industry’s shift to a new era of higher efficiency and lower costs.
Scan the QR code to follow PVTIME official account on Wechat for latest news on PV+ES
