Australian researchers have increased photon absorption in a semiconductor to almost 99%, according to the University of Sydney. The absorber is a sub-wavelength thin-film semiconductor, and no complex nano-structures, meta-materials, exotic materials or difficult-to-create metal-non-metal combinations have been used. Instead, there are simple slots. When light falls on a thin film etched with narrow grooves, ...
Surface absorbs 98% of photons
from ElectronicsWeekly http://www.electronicsweekly.com/news/research-news/surface-absorbs-98-of-photons-2016-05/
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