NOBEL PRIZE 2023 IN CHEMISTRY AWARDED FOR QUANTUM DOTS
It was awarded to Alexei Ekimov, Louis Brus and Moungi Bawendi for discovery and synthesis of quantum dots.
About Quantum dots
Quantum dots are tiny particles (a few nanometres wide) that exhibit unique optical properties due to their small physical size.
Properties of quantum dots can be changed by changing their size, for example they have different colours depending on their size.
At the scale of nanometres, materials and particles are capable of new, size-dependent properties because quantum physical forces start to dominate.
At the macroscopic scale, like in our day to day lives, gravity and the rules of classical physics dominate.
Application of Quantum Dots
About Nobel Winning Research
In the early 1980s, Alexei Ekimov succeeded in creating size-dependent quantum effects in coloured glass.
He demonstrated that the particle size affected the colour of the glass via quantum effects.
A few years later, Louis Brus was the first scientist in the world to prove size-dependent quantum effects in particles floating freely in a fluid.
In 1993, Moungi Bawendi developed a technique to make the quantum dots of well-defined sizes and with high optical quality.
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