2023 Chemistry Nobel Prize: What are Quantum Dots and What is the Work that Won the Prize? | Explained
The Nobel Prize in Chemistry for the year 2023 has been awarded to a groundbreaking discovery in the world of nanotechnology: quantum dots. This prestigious recognition highlights the transformative potential of quantum dots in various scientific and technological applications. In this article, we'll explore what quantum dots are and delve into the remarkable work that led to this well-deserved Nobel Prize. Quantum dots are nanoscale semiconductor particles that exhibit unique optical and electronic properties due to their small size and quantum confinement effects. They are typically composed of semiconductor materials like cadmium selenide (CdSe), cadmium telluride (CdTe), or indium arsenide (InAs) and have dimensions on the order of a few nanometers (1 nanometer = 1 billionth of a meter). One of the most fascinating characteristics of quantum dots is their tunable bandgap, which means that by adjusting their size, the wavelength of light they emit or absorb can be precisely c...