S.C’s “Scalable Manufacturing + Platform-based Verification” Drives Rapid Development of Space PV

As a leading provider of turnkey solutions for solar cell production lines, S.C has leveraged its profound technical expertise and robust platform advantages in high-end PV manufacturing equipment to achieve mass production capabilities for ultra-thin P-type Heterojunction (HJT) solar cells — covering processes from wafer thinning and texturing to the deposition of functional layers such as amorphous silicon (a-Si), TCO, and radiation-resistant thin films — as well as for perovskite tandem cells.

Recently, by virtue of its “HJT + perovskite” pilot line verification platform in Changzhou, S.C successfully developed mature process routes for 50μm P-type HJT solar cells and HJT/perovskite tandem cells.

In response to the unique demands of space PV, S.C is also actively advancing the R&D of P-type TOPCon and BC solar cells technical routes, and plans to establish a specialized space PV fatigue laboratory. This initiative aims to build a comprehensive closed-loop support system, covering key equipment R&D, process optimization, environmental simulation testing, and reliability verification for the space PV industry.

Turnkey Solutions for P-type HJT Solar Cell Production Lines

Breakthroughs Across the Entire Process: From Ultra-thin Wafers to Thin Film Deposition

In response to the stringent requirements of extreme space environments for PV modules, S.C focuses on ultra-thin HJT solar cells and perovskite tandem cells, establishing a complete process chain ready for mass production.

Optimization of Wafer Thinning Process

S.C continues to advance technical upgrades in its chemical thinning and texturing & etching processes, aiming to achieve high-quality, low-damage, and high-light-trapping processing for wafers with thicknesses ≤30μm. This effort lays a solid process foundation for the lightweight design and enhanced mechanical reliability of space PV cells.

Integrated Radiation-Resistant Functional Layer Coating

Leveraging self-developed core equipment such as PECVD and PVD, along with years of technical accumulation, S.C focuses on the R&D and process optimization of a-Si passivation layers, doping layers, and highly stable transparent conductive film (e.g., IWO) to ensure superior electrical performance stability under space particle irradiation.

Full-Process Automation Upgrade

S.C has developed core components designated for ultra-thin wafers, including specialized grippers, cassettes, transfer devices, and trays. A fully automated production line has been established to ensure high efficiency and precision in the ultra-thin solar cells manufacturing process.

Exclusive Pilot Line Verification Platform

“HJT + Perovskite” Technical Route Accelerates the Maturity of Tandem Solar Cells

S.C achieves full coverage of HJT and perovskite solar cells manufacturing equipment and technology through its pilot line verification platform, efficiently optimizing HJT and perovskite technologies and manufacturing equipment.

Full-Process Development of Perovskite Tandem Solar Cells

The platform has full-process R&D capabilities from crystalline silicon bottom cell coating, perovskite layer deposition, transport layer deposition to encapsulation, providing strong support for the rapid iteration of flexible, ultra-lightweight space PV modules.

Closed-Loop Empowerment from Process to Reliability  

Customers can complete key stages such as structural design, process matching, and failure analysis on this platform, effectively accelerating the rapid convergence of technical routes and significantly enhancing product reliability.

Powered by S.C’s “Scalable Manufacturing + Platform-based Verification”

S.C is advancing the indigenous development of China’s space PV industry

By establishing full-process, scalable process capabilities and a cross-technology pilot line verification platform, S.C has developed turnkey solutions covering both wet and dry processes.

“S.C's Scalable Manufacturing + Platform-based Verification' model enables rapid R&D and verification of technology, precisely meeting the core space PV requirements including radiation-resistance, resistance to extreme temperatures, lightweight design, and high efficiency. Looking ahead, we will utilize open platform resources and deepen collaborative innovation to work together with partners across the space industry chain, advancing the indigenous development and high-quality growth of China's space energy technology, ” stated Dr. Sheng Jiang, S.C's Head of Technology and Platform.