(Eindhoven University of Technology) Perovskiet solar cells are at the center of much recent solar research. The material is cheap and almost as efficient as silicon. However, perovskite cells have a love-hate-relationship with the sun. The light they need to generate electricity, also impairs the quality of the cells, limiting efficiency and stability over time. Research at the Eindhoven University of Technology and universities in China and the US now sheds new light on the causes of this degradation.
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