英国纳米技术公司Surrey NanoSystems制造的纳米碳管黑体，它比自然界中所有的黑色都要黑，可吸收99.9644%的可见光，是目前世界上已知的最黑的物质。
Vantablack由高密度碳纳米管组成，这种纳米管比人类的头发还要细数倍，且间距极小，因此光线不会逃逸，而是被困在材料内部。
他们还制造了一个世界上最黑的杯子
由于是纳米材料所以还防水
以下是其官网对于该材料Vantablack的介绍：
Vantablack® is a super-black coating that holds the world record as the darkest man-made substance. It was originally developed for satellite-borne blackbody calibration systems, but its unique physical and optical properties have resulted in it finding widespread application. Vantablack is available in two versions, either directly applied to surfaces using vacuum-deposition technology or, in the case of Vantablack S-VIS, by spraying and then post-processing.
Vantablack absorbs virtually all incident light, making it ideally suited to addressing a host of light-suppression and light-management problems. It reflects so little light that it is often described as the closest thing to a black hole we’ll ever see. With such exceptionally low levels of reflectance, Vantablack produces some startling optical effects; when it’s applied to a three-dimensional object, Vantablack is so black that it becomes extremely difficult to discern any surface features, and three-dimensional objects appear to become two-dimensional.
In fact, Vantablack absorbs more than just visible light, and is equally-effective across a whole range of the spectrum that is invisible to the human eye. It is used in applications ranging from space-borne scientific instrumentation to luxury goods, and its ability to deceive the eye opens-up a whole range of possibilities in design.
来源：https://www.surreynanosystems.com/vantablack