Solar power can become significantly cheaper: record with a new source material

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Solar power can become significantly cheaper: record with a new source material

With a record solar cell, researchers from sunny Australia want to significantly reduce the cost of solar power. As a material, they use kesterite, a crystalline mineral containing the elements copper, zinc, tin, iron and sulfur. Although it is rare in nature, it is easy to produce synthetically. Since the basic components are very common on Earth, the material is very inexpensive and harmless, because none of them are toxic. Costs are further r…