Silicon-perovskite solar cells are cool, but A) this is not a new idea (many, many companies are doing this), B) this isn’t a world record, not even for 2-junction (I used to work at a company that made 30+% single junction GaAs cells), and 3) perovskites don’t have an efficiency issue… they have a stability issue.

This is cool, but please watch the language and accuracy because some of this is incorrect.