Oxford researchers identify new semiconductor for more efficient solar cells
3 Articles
3 Articles
Oxford researchers identify new semiconductor for more efficient solar cells
Researchers at the University of Oxford have discovered that bismuth sulfide material can overcome a major limitation in solar energy. The problem was that materials that absorb sunlight strongly usually lose electrical charge too quickly to generate efficient power. The identified semiconductor material has an unusual internal energy setup that acts like a temporary waiting room. Specifically, it holds onto captured energy longer and reducing…
Semiconductors could sidestep a key solar-energy trade-off through a newly identified mechanism
A study led by the University of Oxford has identified a novel semiconductor that overcomes a key limitation of light-harvesting materials. The results, published today (Oct. 28) in Nature, could enable more efficient solar panels with higher outputs.
Solar cells lose part of the absorbed solar energy because electric charges pick up before they can be used. Researchers at Oxford University have now found out why this loss in bismuth sulfide is unusually low. The recombination could therefore run around 75% slower. A semiconductor should absorb as much sunlight as possible and generate electrical energy from it. However, there is a problem: Materials that absorb light particularly well often …
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