Myth 9: Thin-film solar cells are made with rare earth elements like indium, which eventually (or soon) become depleted.
Fact: Some scientists and politicians say we will run out of rare materials like indium, just as we are running out of the world’s oil reserves. But this is far from the truth. Indium, silicon, gallium, etc. are the basic chemical elements on the periodic table, so they are impossible to destroy. Basic chemical elements cannot be “exhausted”, but only change form, location and application. There will always be as much indium on Earth as there has been, and it can be recycled. There are three times as many indium reserves in the earth’s crust as silver, but no one said that silver will run dry… Moreover, suppliers of solar cell production equipment have managed to halve the thickness of thin-film solar cells in recent years, in the process Significantly reduced rare material requirements.