What is Electron hole?
An '''electron hole''' (often simply called a hole) is the absence or lack of an [[electron]] where an electron would normally be in an [[atom]]. Because electrons are negative and their [[Charged particle|charges]] are balanced by the positive [[Proton|protons]], electron holes are positive in charge. Electron holes are not [[particle]]s, they are classified as [[quasiparticles]]. Electron holes are different to [[Positron|positrons]], which are the [[antiparticle]] to the electron. When electrons change [[Energy level|energy levels]], they leave an electron hole in their place. ==Related pages== * [[Electron]] * [[Atom]] * [[Exciton]] * [[Energy level]] [[Category:Physics]]