Vantablack is a substance made of carbon nano-tubes and is the blackest substance known, absorbing up to 99.965% of radiation in the visible spectrum.Exclusive rights of Vantablack for artistic use have recently been given to the artist Anish Kapoor.
Vantablack 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 among the tubes, eventually becoming absorbed and dissipating into heat.
1. IT’S NOT ACTUALLY A COLOR.
Let’s get technical for a minute. Color, as we humans know it, is the result of the way light is reflected off of an object and into our eyes. Different light frequencies translate into different colors. Vantablack isn’t a color, but a material. It’s made of a “forest” of tiny, hollow carbon tubes, each the width of a single atom. According to the Surrey NanoSystems website, “a surface area of [1 centimeter squared] would contain around 1000 million nanotubes.” When light hits the tubes, it’s absorbed and cannot escape—which means that actually, Vantablack is the absence of color.
2. YOU CAN’T BUY IT.
Because it’s not a pigment or a paint, you can’t just buy a bucket of it and dip a brush in and slather it onto your walls. The nanotubes that make up Vantablack must be grown in the Surrey NanoSystems lab using a complicated (and patented) process involving several machines, a few layers of different substances, and some extreme heat. From start to finish, applying Vantablack to an object can take up to two days, according to Northam. “I had an inquiry yesterday asking how much would it cost for a kilo of Vantablack pigment,” Northam says. “First of all, I can’t sell you a bucket of Vantablack, but if I could, I don’t think there’d be much on the planet that would be more expensive.” He says that, ounce for ounce, Vantablack is a lot more expensive than both diamond and gold.
3. IT DOESN’T FEEL THE WAY IT LOOKS.
“One of the things that people often say is ‘Can I touch it?’” Northam says. “They expect it to feel like a warm velvet.” Though Vantablack does have a sort of soft, velvety look to it, Northam says that doesn’t translate to physical sensation. When you touch Vantablack, it just feels like a smooth surface. That’s because the nanotubes are so small and thin, they simply collapse under the weight of human touch. Here’s how Northam describes it: “Imagine you have a field of wheat, and instead of the wheat being 3 or 4 feet high, it’s about 1000 feet tall. That is the equivalent scale that we’re talking about for nanotubes. The reason they work is they’re very, very long compared to their diameter. It will stay upright and not blow away in the wind, but if you then try and land a plane on it, you’ll make a dent.” So, Vantablack is pretty susceptible to damage, which is why it can’t yet be applied to unprotected surfaces like cars or high-end gowns—one brush of a hand and the material would lose its magic.
4. IT HAS ALMOST NO MASS.
While Vantablack is sensitive to touch, it’s super robust against other forces, like shock and vibration. This is due to the fact that each carbon nanotube is individual, and has almost no mass at all. Plus, most of the material is air. “If there’s no mass, there’s no force during acceleration,” Northam says. This makes Vantablack ideal for protected objects that might have to endure a bumpy ride, like a space launch, for example.
5. IT WILL BE A WHILE BEFORE IT’S USED ON CLOTHES.
Vantablack could take the “little black dress” to a whole new level if it can successfully be applied to fabric without compromising its physical properties. Northam says the company is working with fabric, but Vantablack’s foray into fashion is probably a long way off. “I wouldn’t be surprised if at some point we see something along the lines of a black dress,” he says, optimistically, “but we won’t see people walking down the street in it any time soon.”
Vantablack vs Red Laser
Head Statue Covered With Vantblack
Vantblack VS Water