Conventional monocrystalline or polycrystalline panels do not use rare elements. Slightly fuzzy diagram: https://www.researchgate.net/figure/Structure-of-monocrystal...

Cadmium-telluride and CIGS cells use more rare elements, but they have been overtaken by the ongoing fall in cost of conventional silicon wafer cells, so you won't see too many of them being installed at the moment.

(The failure of CdTe is probably for the best given how spectacularly poisonous both of those metals are)