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This was published in 2010 and is discussing a very specific type of photovoltaic cell. There are other types that have been discovered since this paper was published that don't use rare earth metals, such as perovskite solar cells.
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[–] NoodlyAppendage 0 points 1 point 1 point (+1|-0) ago
This was published in 2010 and is discussing a very specific type of photovoltaic cell. There are other types that have been discovered since this paper was published that don't use rare earth metals, such as perovskite solar cells.
[–] Voat_a_Goat_Mamma [S] ago
Very interesting! Thank you for sharing that. I still thought we needed rare earth metals.
[–] NoodlyAppendage 0 points 1 point 1 point (+1|-0) ago
We do still need those minerals. They have many other uses in technology.