What is a quantum dot?

A schematic representation shows an electron under 12-qubit quantum dot gates.Associated PressQuantum dot research won three scientists the Nobel Prize in chemistry.A quantum dot is a tiny particle that changes color based on its size.Quantum dots are used in LED lights and television screens.Three scientists won the Nobel Prize in chemistry for their research on quantum dots, but what really are the bright-colored dots that help power your television screen?Quantum dots are essentially minuscul