Las tierras raras y el polisilicio, y por qué debemos reducir el riesgo que supone China
Polysilicon is a pure form of silicon and an essential element in the supply chain of solar photovoltaics, which harness solar power. Roughly 80 percent of the world’s polysilicon comes from China. The United States Geological Survey describes rare earths as follows: The rare earths are a relatively abundant group of 17 elements composed of scandium,






