"Flexible solar cells have a transformative potential for niche applications, yet face fundamental challenges in simultaneously achieving high power conversion efficiency (PCE), extreme mechanical resilience and operational stability14. Herein, we demonstrate a certified 33.6%-efficient flexible perovskite/crystalline silicon (c-Si) tandem solar cell with a record open-circuit voltage (Voc) of 2.015 V, rivaling its rigid counterpart."
"The flexible tandem retains 91% of its initial PCE after 5,000 cycles under a bending radius (Rb) of 17.6 mm, and demonstrates exceptional operational and damp-heat (DH) stability, featuring a T80 lifetime exceeding 2,000 hours under continuous illumination and retaining 90% of its initial PCE after 1,000 hours DH test. This advancement is enabled by implementation of the reactive-plasma-deposited (RPD) cerium and hydrogen co-doped indium oxide (ICO:H) recombination layer (RL) that promotes self-assembled monolayers (SAMs) coverage."
A certified 33.6%-efficient flexible perovskite/crystalline-silicon tandem solar cell achieved a record open-circuit voltage of 2.015 V. The open-circuit voltage rivals rigid counterparts, demonstrating parity between flexible and rigid tandem technologies. The device retained 91% of its initial PCE after 5,000 bending cycles at a radius of 17.6 mm. Operational stability testing showed a T80 lifetime exceeding 2,000 hours under continuous illumination. Damp-heat testing retained 90% of initial PCE after 1,000 hours. Performance and resilience are enabled by a reactive-plasma-deposited cerium and hydrogen co-doped indium oxide recombination layer that promotes self-assembled monolayers (SAMs) coverage.
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