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From Atoms to Devices: The Ubiquitous Role of Electron Excitation

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     How does the cornstarch jump when placed in a hot pan? Why? Because of the heat! Electron excitation is a process in which electrons gain energy and move from the ground state to a higher energy level. The excited atoms and nuclei return to the ground state, releasing this energy as visible light or gamma radiation that cannot be retained for long. Excitation is how a substance absorbs electromagnetic energy and is heated or ionised. Thanks to pixabay.com for image      Why is it important to understand electron excitation? Stimulated states of atoms, energy absorption, emission properties, optoelectronic applications, and chemical synthesis can be understood from it. Also in modern chemistry, the process of correlated electron-hole pairs and the kinetic Coulomb attraction. Which determines the energy apart from the energy of the orbit.  Secondary orbital relaxation and repulsion also play a role in electronic excitation processes. The methods of ...