"Scientists at the Research Institute for Electronic Science at Hokkaido University have created what they call a “golden sandwich,” a photoelectrode that captures 85% of sunlight and uses it to split water and thus create hydrogen. Yes, this is experimental stuff, and no, it has not yet reached commercial production. But stop and think for a minute what that could mean to the renewable energy revolution..."
https://cleantechnica.com/2018/09/13/golden-sandwich-solar-cell-converts-85-of-sunlight-to-electricity/
