,absorbing a maximum of 99.965% of radiation in the visible spectrum. It is composed of a forest of vertical tubes which are "grown". When light strikes vantablack, instead of bouncing off, it becomes trapped and is continually deflected between the tubes before eventually becoming heat.
Vantablack-coated aluminium foilIts name comes from the term Vertically Aligned NanoTube Arrays.
This substance has many potential applications, including preventing stray light from entering telescopes, and improving the performance of infrared cameras both on Earth and in space.
Vantablack is an improvement over previous substances developed. Vantablack absorbs all but 0.035% of visible light. Also, this new substance can be created at 400 °C (752 °F). NASA developed a similar substance that could be grown at 750 °C (1,380 °F). Vantablack, therefore, can be grown on materials that cannot withstand higher temperatures.
The outgassing and particle fallout levels of Vantablack are low. The high levels in similar substances in the past have prevented their commercial usefulness. Vantablack also has greater resistance to vibrations and has greater thermal stability.
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