It is composed of carbon nano-tubes, tiny tubes of tightly rolled carbon that are 400 hundred times smaller than the diameter of a strand of hair. The carbon helps absorb some of the light.
These tubes are standing on end, much like a patch of grass. This arrangement traps light in the tiny gaps between the "blades."
The researchers have also made the surface of this carbon nano-tube carpet irregular and rough to cut down on reflectivity.
Pictured above the old black (left) and the new black (right).
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