Diese fortschrittlichen Solarzellen haben eine antike Quelle: alte Kugeln. Aus jahrhundertealter Munition recyceltes Blei liefert Rohstoffe für Perowskit-Solarzellen.

Does this count as research? It just seems like a regular article on me. Yes, materials for objects can be harvested from any object, even if they had a past form which held a specific social perception.

Your next solar cell can be made out of metals extracted from the earth, an old bullet, or even your grandma’s prosthetic hip, it’s all the same at the end of the day.