Three scientists have won the 2023 Nobel Prize in Chemistry for their discovery and development of quantum dots, which are used in LED lights, television screens and surgical removal of cancerous tissue.
Foreign news agencies reported that on October 4, 2023, the Royal Swedish Academy of Sciences announced that three scientists were Mr. Mongi Bawendi (Moungi Bawendi), Louis Brus (Louis Brus). and Alexei Ekimov are winners of the 2023 Nobel Prize in Chemistry.
Johan Akhvist, Chairman of the Nobel Committee for Chemistry, stated this at the awards ceremony in Stockholm. Sweden says These three scientists were pioneers in exploring the nanoworld. “It’s been a long time. No one thought that people could actually create such small particles. But this year’s award winners have succeeded.”
As Heiner Linker, member of the Nobel Chemistry Committee, explains what makes the work of the three scientists so revolutionary. “The essence of quantum dots is Just change its size. You can change its characteristics, such as its color, which is completely unusual.”
“If you imagine that You want to dye a t-shirt. From red to green from yellow to blue You have to use different molecules. Because different atoms in different groups will give different colors That is chemistry,” Mr. Linker continued. “But quantum dots allow us to use atoms in that same group. Just change the size and number of atoms and you’ll get a new color. New Features”
Quantum dot vial It was displayed at the Nobel Prize ceremony. To demonstrate changing its characteristics
Matter in the nano world starts from the size of 1 millionth of a millimeter onwards. This will start to cause a strange phenomenon called ‘Quantum Effects’. Quantum dots consist of only a few thousand atoms. If we compare the size of 1 quantum dot to 1 football, It is equal to 1 football goal for the entire world.
When light moves through a quantum dot, It will emit a specific color. It can be adjusted depending on the size of the dot. Bigger dots will glow red. The smallest dots glow green or blue.
Quantum dots are now found in living rooms and movie theaters around the world. Because it is widely used in television production. and has more advantages than general LCD screens Creates a wider, more accurate range of colors. Including using less energy.
Quantum dots are also used in medical diagnostics. Doctors will use them to illuminate the molecules. that can bind itself to cancerous tumors This allows the surgeon to separate healthy tissue from cancer.
Mr. Bawendi, who is of French descent, is a professor at the Massachusetts Institute of Technology (MIT), while Mr. Brus is an American professor emeritus at Columbia University. While Mr. Ekimov, a Russian national, worked for the company. Nanocrystals Technology, Inc. is headquartered in New York.
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2023-10-04 17:04:00
