I am at the scene: "Planting" diamonds

Author:Guangming Daily Time:2022.07.22

"There is a high temperature of more than 1,000 degrees. Looking at the 'plant' diamonds, don't burn your eyes!" The reporter was in a laboratory in Hefei, Anhui, and researcher Song Xuerui handed a professional glasses to reporters. The cultivation cavity in front of me is similar to ordinary sealing jars, but the light emitted inside is stubborn.

Three different carats of cultivation diamonds

In the cultivation cavity, the diamond "seeds" (seed chip) are being grilled. "Nutrition" (methane "(methane) is split under high -energy microwave excitement, like the dust floating in the air, falling on the" seed "little by little, little by little, little by little, and falls on the" seed "little by little. Essence Over time, the "seeds" are crystals and grow up slowly.

"After the" seed '' ‘out’, after cutting, polishing and other processes, it will become sparkling diamonds. ”Song Xuerui continued to explain to reporters who could see.

Researchers are observing diamonds "growth"

"What is the difference between the diamonds from the" planting '? "The reporter asked curiously.

"In terms of physical and chemical characteristics, there is no difference, even more pure. But the price is only one -fifth of natural diamonds." Song Xuerui said, "This diamond is the key to overcome the technical problem of 'card neck'."

Diamond polishing process

Seeing that the reporter was a little puzzled, he then explained: "Such a high -purity single crystal diamond is the most ideal 'ultimate semiconductor', which plays an important role in the heat management of electronic devices, optical window pieces, quantum information and other fields. Our scientific research work It took nearly 30 years to make the purgatory purity of diamond reaching the international advanced level! "

A 4 -caramel cultivated diamond shone in Song Xuerui's hands, reflecting his pride in his expression.

(Reporter Ding Yiming)