VANTABLACK

Imagine darkness. Not just night, but the deepest possible black, where no light escapes. Now picture a human-made material that can create this effect in real life. That material is VantaBlack, which absorbs almost all light and makes surfaces look like voids. The story of VantaBlack began in the early 2000s in the UK. Scientists working with carbon nanotubes noticed that these tiny structures could trap light. Later, the company Surrey NanoSystems developed this idea further. In 2014, they introduced VantaBlack to the world. It can absorb 99.965% of visible light. When an object is coated with it, its shape and texture disappear, leaving behind what looks like a “hole in reality.” Some say it looks like a donut with its middle erased.

The secret is in its structure. VantaBlack is made of millions of carbon nanotubes standing upright. When light enters, it bounces around inside these tiny “mazes” until it is completely absorbed. For the human eye, this means no shine, no shadows, just pure black. The production process is also difficult. The nanotubes are created through a method called chemical vapor deposition (CVD), which needs very high temperatures and special conditions. So no, you can’t paint your bedroom with it, at least not yet.

VantaBlack is not only a scientific curiosity. It has important uses:

• Space science: It can be used inside telescopes to reduce unwanted reflections, giving scientists clearer images of the universe. Quite fitting, since it looks like space itself.
• Defense technology: Researchers are exploring its use in camouflage. Imagine a tank at night, almost invisible to both the eye and radar. A little scary, right?

Even though VantaBlack is impressive, it has limits. It is expensive and not easy to apply. This is why researchers are looking for better alternatives. In 2019, engineers at MIT introduced a new material that absorbs even more light than VantaBlack [MIT News]*. The race to find the “blackest black” continues. (I sometimes think that if we keep going, we might eventually break physics itself, forget absorbing 100% of light, maybe one day we’ll hit 200%! Imagine looking at something and seeing absolute nothing like 0. Scientists would probably need a new law just to deal with that level of black.)

Some people may think, “It’s only a color.” But discoveries like this show how far science can go. Understanding and controlling light could lead to new technologies, maybe even new ways of producing energy. It may sound ambitious, but we are humans, the Homo Sapiens, the “thinking species.” And if anyone can find a way to turn darkness into power, it’s us.