Combatting temperature and reverse-bias challenges facing perovskite solar cells

Although lead-halide perovskite solar cells have shown outstanding en-ergy conversion efficiencies, limited stability has impeded upscaling and remains a major challenge for commercialization, despite steady progress in this area. However, experience shows that the most demanding durability issues for fielded modules arise when cells become reverse biased, which poses challenges even for substantially more robust silicon cells. As the momentum for commercialization con-tinues to grow, resolution of these reverse-bias effects is destined to become increasingly important. Innovative approaches may well be required since the intrinsic stability of these perovskites are unlikely ever to match silicon. This article identifies the additional challenges faced by perovskite solar cells under reverse-bias operation and out-lines strategies for addressing them in terms of both cell connections within the module and bypass diode protection.

Automated summary

Although lead-halide perovskite solar cells have high energy conversion efficiencies, their limited stability and challenges under reverse-bias operation hinder commercialization. Innovative approaches are needed to address these challenges and increase stability.