Did you just seriously use a VICE article as a source for technical information? Aside from that gaffe, even they don't mention any use for rare earth metals in solar panels. I challenge you to find some use that would make sense in your bog-standard crystalline silicon PV panel. I've never been able to find any.
jhgb|6 years ago
bicubic|6 years ago
Refer to Fig. 11.1
If you need more help to identify REM or understand basic PV chemistry, get in touch with a local middle school chem tutor, they will help you out.