PASADENA >> The beach isn’t the only place where the positive effects of sunscreen can be found this summer — it can also be found inside Caltech laboratories. Researchers at the Joint Center for Artificial Photosynthesis have created a new way to keep semiconductors used in solar fuel generators from corroding in a matter of minutes, like they do now, by using titanium dioxide, also found in sunscreens, toothpastes and white paint. The semiconductors...
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