Nobel Prize in Chemistry 2023 Winners | Quantum Dots UPSC GK Free PDF

Nobel Prize in Chemistry 2023 – On October 4, 2023, the Nobel Prize in Chemistry 2023 was announced by the Royal Swedish Academy of Sciences. There are 351 candidates for the Nobel Prize in different fields in the year 2023. The Nobel Prize was awarded for the first time in 1901. In this article, we will read about the Nobel Prize in Chemistry 2023 and also read about the quantum dots, their formation, and their uses.

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Nobel Prize in Chemistry 2023 Winners

Nobel Prize in Chemistry 2023 Winners
Nobel Prize in Chemistry 2023 Winners
  • Moungi G. Bawendi, Louis E. Brus, and Alexei I. Ekimov were selected for the Nobel Prize in Chemistry 2023.
  • These scientists will be given the Nobel Prize for the discovery and development of quantum dots.
  • Moungi G. Bawendi, Louis E. Brus, and Alexei I. Ekimov are American scientists.
  • Quantum dots are nanoparticles that are so small that their size determines their properties.

Formation of Quantum Dots

Nobel Prize in Chemistry 2023 – Scientist Moungi Bawendi forms Quantum Dots in the following 3 steps.

  1. Bawendi injected a mixture into a hot solvent to create a semiconductor called cadmium selenide.
  2. By mixing the mixture in the solution, small crystals were formed and these crystals were named quantum dots.
  3. Quantum dots stopped forming after the solution cooled, so Bawendi heated the solution again. As the solution was heated the crystals began to form again.

Uses of Quantum Dots

Nobel Prize in Chemistry 2023 – Quantum dots add particles to the light of many LED lamps that make precise work easier.

Quantum dots are used today to illuminate computer monitors, mobile phones, and television screens. QLED technology is used in it. The light of quantum dots is so bright that when it is shined on the tumor, surgeons will have no problem seeing the tissue.

Researchers have also used quantum dots to create colored light. The Nobel Prize-winning chemist believes that in the future, quantum dots could contribute to flexible electronics, tiny sensors, thin solar cells, and perhaps encrypted quantum communication.

Marie Curie Nobel Prize in Chemistry

Nobel Prize in Chemistry 2023 – Poland-born physicist and chemist Marie Curie, along with her husband Pierre Curie, made many scientific discoveries. The discovery of two new elements, radium and polonium, was announced in 1898. It was a difficult task for Mary to separate pure samples of these elements. It took four years to extract 1 decigram of radium chloride from several tons of raw ore.

In 1911, Curie received her second Nobel Prize in Chemistry for her discovery of radium and polonium. A few years after Marie Curie was honored, America dropped atomic bombs on two Japanese cities. Polonium was also a main element of the detonator of the bomb that was dropped on Nagasaki. Although Curie was not involved in the project of making the atomic bomb.

Venkataraman Ramakrishnan Nobel Prize 2009

Nobel Prize in Chemistry 2023 – Venkatraman Ramakrishnan, one of the most distinguished scientists of Indian origin, received the 2009 Nobel Prize in Chemistry in the field of Molecular Biology. In 2000, he mapped the structure of the ribosome, made up of hundreds of thousands of atoms, using a method called X-ray crystallography. This helped a lot in making antibiotics.

Large and complex protein molecules manage all the functions of the body of any organism. These are made in the ribosomes of the cell. Their genetic information is translated into amino acid chains through RNA. This then makes proteins. Using this theory, he created the structure of the ribosome through X-ray crystallography.

Venkatraman was born in 1952 in Chidambaram, Tamil Nadu. He studied science in America and Britain. Apart from the Nobel Prize, Venkatraman was also awarded the Padma Vibhushan in 2010. He was selected for a knighthood in the 2012 New Year Honors List.

Oldest Nobel Prize Laurate

The oldest Nobel laureate is Japan’s John B. Goodenough has received. Goodenough was 97 years old when he was awarded the Nobel Prize in Chemistry in 2019. He was also the oldest winner to be honored in any Nobel Prize field.

In 1980 John Goodenough developed a lithium battery with a cathode of cobalt oxide. Lithium ions can be placed at the molecular level in the cathode of cobalt oxide. This cathode gave higher voltage than earlier batteries. Goodenough’s contributions were important in the development of the lithium-ion battery. Today it is used in everything from mobile phones to electric cars.

So in this way, we have read about the Nobel Prize in Chemistry 2023 winners and details about quantum dots. We hope you liked this article.

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