D9.10: GUIDELINES FOR AGING PROCEDURES OF PEROVSKITE PV TECHNOLOGY - MAIN OUTCOMES AND FINAL CONCLUSIONS

D9.10 GUIDELINES FOR AGING PROCEDURES OF PEROVSKITE PV TECHNOLOGY - MAIN OUTCOMES AND FINAL CONCLUSIONS

This deliverable report presents the key findings and guidelines derived from the VIPERLAB project’s extensive aging studies on perovskite photovoltaic (PV) technologies. These studies explored the effects of critical stress factors—light, temperature, and humidity—on various perovskite PV device architectures, including single-junction devices with NIP or PIN structures and tandem perovskite-silicon devices. Both accelerated aging and outdoor experiments were conducted to simulate real-world conditions and predict long-term stability. Key insights from the report include: 1. Round Robin Organization and Device Description:

• Detailed protocols and experimental setups for three aging scenarios: light aging, damp heat and thermal cycling, and outdoor aging.

• Comprehensive descriptions of devices tested, such as PIN and NIP single-junctions and tandem silicon-perovskite cells. 2. Aging Results and Recommendations:

• Light-aging studies revealed distinct degradation patterns under continuous illumination and light cycling. Encapsulation quality significantly influenced device stability.

• Thermal cycling and damp-heat tests highlighted encapsulation’s critical role in protecting devices against thermal and humidity-induced stresses.

• Outdoor aging demonstrated the interplay of irradiance, temperature, and encapsulation on device performance and longevity. 3. Standards, Harmonization, and Protocols:

• Discussions on current standards like ISOS, PACT, and emerging IEC guidelines for perovskite PV technologies.

• Recommendations for improving and standardizing accelerated aging tests to bridge the gap between lab-scale studies and real-world performance.

This report emphasizes the need for harmonized protocols to enhance reliability, scalability, and standardization of perovskite PV devices, providing a foundation for future research and development in this rapidly evolving field.