Researchers from the Universities of Bristol and Exeter have created a metasurface that strongly absorbs light across the solar spectrum but minimises emission of thermal radiation. It uses uses amorphous carbon as an inter-layer between thin gold films with the upper film patterned with a 2D periodic array using focused ion beam etching. Gold is a first step, ...
Metasurface converts sunlight to heat for electron emission
from ElectronicsWeekly http://www.electronicsweekly.com/news/research-news/metasurface-converts-sunlight-to-heat-for-electron-emission-2016-06/
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