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Graetzel cell

The Popeye of solar cells

We all know Popeye, that grumpy but good-hearted sailor who eats spinach to develop unsuspected reserves of strength whenever in need. In his day it was mistakenly thought that spinach leaves contained an unusually large amount of iron and were thus especially healthy. But what nobody could suspect back then was that spinach, along with a few other ingredients, can be used to produce electricity! The "recipe" needed is available at DLR_School_Lab Berlin.

The entire text is only available in German.

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