If that figure is true then yes that seems awful. It stopped me to look into it and at least according to Wikipedia ”In July 2015, major hurdles were that the largest perovskite solar cell was only the size of a fingernail and that they degraded quickly in moist environments.However, researchers from EPFL published in June 2017, a work successfully demonstrating large scale perovskite solar modules with no observed degradation over one year (short circuit conditions). Now, together with other organizations, the research team aims to develop a fully printable perovskite solar cell with 22% efficiency and with 90% of performance after ageing tests.”
So maybe these particular cells aren’t great, but there is hope that it’s not an intrinsic unsolvable issue.
If that figure is true then yes that seems awful. It stopped me to look into it and at least according to Wikipedia ”In July 2015, major hurdles were that the largest perovskite solar cell was only the size of a fingernail and that they degraded quickly in moist environments.However, researchers from EPFL published in June 2017, a work successfully demonstrating large scale perovskite solar modules with no observed degradation over one year (short circuit conditions). Now, together with other organizations, the research team aims to develop a fully printable perovskite solar cell with 22% efficiency and with 90% of performance after ageing tests.”
So maybe these particular cells aren’t great, but there is hope that it’s not an intrinsic unsolvable issue.