From the spare room to outer space: A DIY project that could transform solar power

https://techxplore.com/news/2022-08-room-outer-space-diy-solar

"pictures and maps of defects within solar cells and tells scientists where cells are losing power or efficiency over time... innovative technique started as personal project... originally intended analyze minerals... merging with frequency analysis... laser beam... focus to spot and scan across... measure quality of solar cell"