ALD – Technique

With the ALD technology can thin layers be achieved with incredible precision on any type of product, almost completely independent of said products size and shape.

Nanexas scientific and commercial core competence lies within the area of nanotechnology where physics and chemistry meet. More specifically Nanexas focus is on producing thin layers with a precision of a single atomic layer. These thin layers can completely cover anything, from very small objects such as nanoparticles to large areas such as the surface of so-called smart windows.

There are many different ways to manufacture theses thin layers or nanolayers, but the most elegant technology in this area is arguably Atomic Layer Deposition – ALD. This technique utilizes, in a very ingenious way, natures own unmatched ability to, at the atomic level, control molecules and atoms in their relative arrangement to each other and thereafter predict how these species will react with each other. This knowledge of nature can be used to produce thin layers with a precision of a single atomic layer with highly varying and interesting properties. What is perhaps even more fascinating is that the ALD-technique can accomplish these nanolayers as pure metals, metal oxides or many other chemical compounds with a tremendous precision on any type of product irrespective of the product’s size and shape. It is therefore possible, using the ALD-technique, to make a layer on the inside of a tube or even the inside of a nanocapillary with atomic layer accuracy.

Nanolayers have an amazing ability to change and improve selected properties of a product while leaving other desirable properties unchanged. An example is an anti-scratch treatment on a pair of glasses; the appearance of the lens of glasses is unchanged after the treatment but resistance to scratches has been improved many times.

Nanexa applies ALD technology in several product areas. You can read more about these areas, such as our drug delivery systems PharmaShell® here [lank till pharmashell] and sensors used to detect underground nuclear explosions here [lank till ALD Projects].