Background

Perovskite and tandem cells are expected to dominate the next generation of photovoltaic technologies, and they will play an key role in space solar market. Perovskite single-junction solar cells, with advantages such as semi-transparency, flexibility, and indoor power generation capabilities, hold broad application prospects in fields like BIPV, consumer electronics, wearable devices, and new energy vehicles. Perovskite-HJT tandem cells, perovskite-TOPCon tandem cells and perovskite-XBC tandem cells, due to their significantly higher efficiency compared to single-junction cells, are particularly suitable for centralized power station.

Space solar market wills create new development opportunities for P-type HJT, perovskite, and tandem solar cells. Traditional gallium arsenide (GaAs) cells used in satellites are costly, with limited raw material supply and production capacity, making them unable to meet the rapidly growing demand of the commercial aerospace sector. Ultra-thin P-type HJT cells are highly compatible with flexible solar arrays, offering superior lightweight properties and radiation resistance. P-type HJT-perovskite tandem solar cells can achieve efficiency above 30%, while costing significantly less than GaAs cells with comparable efficiency, making them a promising key component for space power systems.

Driven by the collaborative efforts of global enterprises and research institutions, perovskite solar cells continue to advance in terms of efficiency, cost, yield rate, stability, and large-scale production. In May 2025, the steady-state power of a 2.82m² perovskite module produced by Utmolight GW-scale production line reached 480.5W, with an efficiency of 17.04%. In September 2025, RenShine Solar's 30cm*40cm flexible perovskite module achieved a steady-state efficiency of 20.84%. In January 2026, GCL Perovskite achieved an efficiency of 27.06% for its 2m² commercial perovskite-Si tandem modules.

Perovskite industry leaders and crystalline silicon giants are actively engaged in the research and development of tandem cells and space solar technologies. In April 2025, Longi's  perovskite-Si tandem cell achieved an efficiency of 34.85%. In June 2025, Trina Solar's perovskite-Si 2T tandem module achieved a power output of 841W. In January 2026, Risen successfully delivered its batch-produced 50μm ultra-thin P-type HJT cells and achieved a perovskite-HJT tandem cell efficiency of 30.99%. Also in January 2026, Shanghai Hency Solar rapidly transitioned and upgraded to the P-type HJT technology route and realized a perovskite-HJT 2T tandem cell efficiency of 33.08%.

Tandem cells face more technical challenges compared to single-junction perovskite cells. 4T tandem cells have good compatibility and lower manufacturing difficulty, but they have a complex structure and higher costs. In contrast, 2T tandem solar cells feature a compact structure, lower costs and reduced optical losses, though their manufacturing process is more challenging. For space market, P-type HJT-perovskite tandem cells must achieve long-term stable operation under extreme conditions such as ultraviolet radiation, particle irradiation, and high-low temperature cycling.

8th Perovskite, Tandem and Space Solar Forum 2026 will be held on April 15-16 in Changzhou, Jiangsu, China. The conference will address the following topics: Outlook for the PV industry and market analysis of perovskite & tandem solar cells. Opportunities for HJT, perovskite, and tandem cells in the space solar market. Material systems, manufacturing processes, and key equipment for large-area perovskite solar cells. Research on yield and efficiency improvement, cost reduction, and stability of perovskite and tandem Solar Cells. Applications of perovskite and tandem solar cells in BIPV, consumer electronics, new energy vehicles and PV power plants. 24.Challenges for LEO satellite solar: ultraviolet radiation, particle irradiation, atomic oxygen erosion, and high-low temperature cycling. Space PV technology routes: rigid foldable solar arrays and flexible roll-out solar arrays. Fabrication processes, radiation resistance and long-term stability of P-type HJT-perovskite tandem cells for space applications

Topics

1. Outlook for the PV Industry and Market Analysis of Perovskite & Tandem Solar Cells

2. Opportunities for HJT, Perovskite, and Tandem Solar Cells in the Space Solar Market

3. Cost Reduction and Efficiency Enhancement Strategies for Perovskite & Tandem Solar Cells

4. Operational Summary of Perovskite Solar Systems in Distributed and Centralized Power Plants

5. Outlook for Perovskite Solar Cells Capacity and Market Opportunities in Technology, Equipment and Materials

6. Technical Challenges and Process Optimization Methods for Perovskite Solar Cells Fabricated via Solution Coating

7. Inkjet Printing Preparation Process and Advanced Equipment for Perovskite Solar Cells

8. Preparation Solutions and Key Equipment for HTL and ETL in Perovskite Solar Cells

9. Application of Laser Technology in Perovskite Solar Cell Production

10. Technology Routes and Supply Outlook for TCO Glass

11. Materials System, Interface Passivation and Structure Regulation in Perovskite Solar Cells

12. Application Advantages of Platinum Group Metals in the Field of Perovskite Solar Cells

13. Research on the Long-Term Stability of Perovskite Solar Cells

14. Competitiveness Analysis and Efficiency Outlook for Perovskite-Perovskite Tandem Solar Cells

15. Technical Challenges and Solutions for 2T Tandem Solar Cells

16. Structural Design and Manufacturing Process of Square-Meter-Scale 4T Tandem Modules

17. Advantages and Challenges of Perovskite-BC 3T Tandem Solar Cells

18. Ultra-Low-Temperature Curing Silver Paste for Si-Perovskite Tandem Solar Cells

19. Encapsulation Technology and Materials for Perovskite Tandem Modules

20. Testing Standards and Techniques for Perovskite and Tandem Solar Cells

21. R&D and Mass Production Processes for Flexible Perovskite Solar Cells

22. Application Practices of Flexible Perovskite Solar Cells in Consumer Electronics and Wearable Devices

23. Market Potential of Perovskite and Tandem Solar Cells in BIPV and New Energy Vehicles

24. Challenges for LEO Satellite Solar: Ultraviolet Radiation, Particle Irradiation, Atomic Oxygen Erosion, and High-Low Temperature Cycling.

25. Space Photovoltaic Technology Routes: Rigid Foldable Solar Arrays and Flexible Roll-out Solar Arrays.

26. The Mass Production of 40-50μm Ultra-Thin Silicon Wafers and P-type HJT Solar Cells

27. Radiation Resistance and Lightweight Potential of P-type HJT Solar Cells for Space Applications

28. Fabrication Processes and Long-term Stability of P-type HJT-Perovskite Tandem Cells for Space Applications

29. Integration and Testing of Space PV Array and Power System

30. Advantages of High-Performance Perovskite-Perovskite Tandem Solar Arrays

Program

April. 14

16:00-20:00  Pre-conference Registration 

April. 15

08:30-12:30  Speech

12:30-14:00  Networking Lunch

14:00-18:30  Speech

18:30-20:00  Banquet

April. 16

08:30-12:30  Speech

12:30-14:00  Networking Lunch

14:00-18:30  Speech

18:30-20:00  Banquet