Solar street lights are made of photocopy effects. The solar panels receive solar radiation energy during the day and converted into electrical output. The photovoltaic effect refers to the phenomenon of electromotive momentum when the semiconductor is illuminated by light.

The photovoltaic effect is referred to as photovoltaic effects, and the complementary controller refers to the phenomenon that generates a potential difference between the incomplete semiconductor or the combination of the semiconductor or the metal. It is first transformed from photon (light wave) to electronics and light energy to electrical energy; secondly, the voltage process is formed. With the voltage, it is like building a dam. If the two are connected, the circuit of the current will be formed.

If the light is irradiated on the solar cell and the light is absorbed in the interface layer, the photon with sufficient energy can be stimulated from the covalent keys in the P -silicon and N -silicon silicon, which causes an electronic cave. Electronics and cave near the interface layer will be separated by the effect of space -charged electric field before compounding. Electronics move to the P -area P area with a positive electron and pores. Separation through the charge of the interface layer will generate an outward -to -test voltage between the P and N zone. At this time, you can add an electrode on both sides of the silicon wafer and connect to the voltage meter. For crystal silicon solar cells, the typical value of the opening voltage is 0.5 to 0.6V. The more the electron-grounded acupoints generated by light at the interface layer, the larger the current. The more light absorbed by the interface layer, the larger the interface layer, the larger the battery area, and the larger the current formed in the solar cell.