Gold 'supraballs' nearly double solar energy absorption in tests
Jan 27, 2026
Sunbeams contain a lot of energy. But current technology for harvesting solar power doesn't capture as much as it could. Now, in ACS Applied Materials Interfaces, researchers report that gold nanospheres, named supraballs, can absorb nearly all wavelengths in sunlight—including some that traditio
nal photovoltaic materials miss. Applying a layer of supraballs onto a commercially available electricity converter demonstrated that the technology nearly doubled solar energy absorption compared to traditional materials. ...read more read less