• 1.08 10¹⁸ kWh of solar energy reaches the earth’s surface every year. i.e. more than 9.28 10¹³ TOE*.
• Currently, 100 million barrels of oil are produced every day, equivalent to nearly 1.4 10⁷ TOE*/day. In other words, every day, the earth receives nearly 20,000 times more energy from the sun than what can be released from oil.
• The average daily usable solar power is 340 W/m² on average (including nighttime). It would therefore take 3.3 10¹⁰m² to capture the energy consumed by human activity, i.e. half the surface area allocated for agricultural production of biodiesel or the equivalent of the surface area of Belgium

(*TOE, for tonne(s) of oil equivalent, corresponds to the amount of energy that can be released from 1 tonne of oil. Corresponds to 11,630 kWh)

This is why Diarotech decided to invest in a project to synthesize diamonds using chemical vapor deposition (CVD) to make the best use of all the properties of the diamond film formed.

During the project, the Diarotech team developed and patented a new Chemical Vapor Deposition technology. The laboratory unit developed enables diamond deposition on substrates with a surface area of 0.5 to 3 cm² with speeds of deposition of tens of µm/h and much lower energy consumption than competing technologies.

Diamond is one of the allotropes of carbon in which each carbon atom is bonded to 4 other carbon atoms in a face-centered cubic structure. The carbon is sp³ hybridized. This form contrasts with graphite, where each carbon atom is bonded to three other atoms in the same plane forming sheets with a hexagonal structure. The carbon is then sp² hybridized.

Under normal pressure and temperature conditions, the graphite form is stable, but under certain pressure and temperature conditions, the diamond shape is stable.
Like natural diamond, once synthesized under conditions of stability by our process, the diamond remains metastable under ambient conditions.
The method therefore consists of adding carbon atoms under conditions in which sp³ hybridization is prevalent, which is particularly the case at low pressure and high temperature!
To achieve this, we pass an electric current through a low-pressure gas containing carbon species (methane, acetylene, carbon dioxide, etc.) close to a substrate.
Our distinctive technical capabilities allow us to achieve remarkable results compared to competing technologies !

High flexibility in terms of deposit structures ranging from Ultra-Nanocrystalline (UNC) (d < 10nm) to Microcrystalline (d > 100µm) and high deposit speeds of up to tens of microns per hour. Perfect mastery of the process, developed in-house, for impeccable deposition quality :

Exclusive technology combining quality, speed and effectiveness with excellent energy efficiency !