As the concept was presented originally in 2015 [1], and based on the fabrication portion, the authors seemingly spent 7 years to get to this point [2]. If in 10 years we are still using multi-junction, rare earth metal based panels, as an optimistic outlook on this work, solar panels could potentially reduce the amount of rare earth/minable materials required and instead use larger areas of solar concentration.

[1] https://ur.booksc.me/book/55710391/7ba74d [2] https://www.nature.com/articles/s41378-022-00377-z#Sec6