Tight-binding model

The tight-binding model is like a picture we use to understand how electrons move between atoms in materials. It is a way of looking at how electrons interact with each other in materials like metals and semiconductors. Electrons have a negative charge, so they like to be close to one another and tiny magnets push them away from each other. The tight-binding model looks at how these tiny magnets interact to make it easier for electrons to move around the material. It helps us try to understand things like why some materials are better for making electronics, like semiconductors.