Hello,
Many reports have been written about PSCs that work for only a few days or even less under illumination in ambient air.
However, in some articles PSCs are stable for 100s of hours. Does this mean stability is not an issue any more?
See e.g. the recent paper using a PSC without hole conductor, with TiO2 mesoporous scaffold.
Article A hole-conductor-free, fully printable mesoscopic perovskite...
Thank you for your answer. The 5-AVA may indeed be crucial.
In another paper, Grätzel achieves 500h stable operation of conventional perovskites, but under Ar atmosphere.
Snaith managed to stabilize PSCs for 96h under air at 80°C, but without illumination. He used a hydrophobic PMMA coating (which is permeable to oxygen)
Light, heat, moisture and oxygen all play a role, but at the moment it is not clear which is decisive.
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