The secret of solar led street light 100w:

The (Si) atoms in the solar panel are scattered in a vacuum as shown in Fig. 1, and the outer layer of Si is distributed with 2 electrons in 3s and 2 electrons in 3p. The electron energy in such an isolated atom is numerically equal to the value of the shift as shown.

The silicon (Si) atoms are close to each other as shown in Fig. 1b, and the electrons do not stay in the atom but extend to the position of the adjacent atoms, causing the electron orbits to overlap. In order to obtain kinetic energy, the energy level will have a certain width. This energy width is called the energy band. Bandwidth is a measure of the amount of kinetic energy produced by electron motion. In this state, the upper energy band (since there are 6 rails)

The channel, so denoted by 0) is filled with two p-layer electrons and exhibits metallic properties. This state corresponds to the liquid state of Si. It is well known that molten silicon can exhibit the electrical conductivity of metals, so techniques for using magnetic fields to prevent the movement of molten silicon are being applied to the study of growth of the body.