Okay if the energy, if the electron falls down to n equals let's go down to n equals 1, it's going to fall down to the lowest energy state back to it's ground state depending on it's going to emit bands of energy depending on how much energy is released at that period.
In this science fair project, you will investigate how kinetic and potential energy work in a very simple system: a rubber band shooter. In this system you will stretch a rubber band over the end of a ruler and release it (without aiming it at anyone of course).
Energy band definition
goes into the high energy band. now the electrons in the high energy band have empty orbitals real close and can conduct an electric current. call this an n-type semiconductor because negative charges exist in the high energy band . dope silicon (group 14) with gallium (group 13) each gallium atom contributes 3 electrons instead of silicon's 4 ...
"Energy" is a word that's used a lot. Here, you'll learn about how it's one of the most useful concepts in physics. Along the way, we'll talk about work, kinetic energy, potential energy, conservation of energy, and mechanical advantage.
Essentially, the band gap represents the minimum energy that is required to excite an electron up to a state in the conduction band where it can participate in conduction. The lower energy level is the valence band, and thus if a gap exists between this level and the higher energy conduction band, energy must be input for electrons to become free.