dell battery tips

 When the sun light strikes the solar cell, the cell to absorb light energy to produce photovoltaic e - hole right. Built-in battery electric field, photogenerated electrons and holes are separated, light appeared at the two ends of the battery charge accumulation of opposite sign, that is, produce a “photo-voltage,” which is the “photovoltaic effect.” If the built-in electric field on both sides of the electrode leads to connect the load, then load in there, “photovoltaic current” flow, thereby gaining power output. In this way, the sun’s light energy directly into the electrical energy can be put to practical. In order to further study the principles of solar cells, solar cells need to be aware of the construction, materials, energy band structure, electron hole of sports law, as well as features such as built-in electric field. Would also like to focus on current understanding of solar light, optical voltage and photoelectric conversion efficiency of solar cells operating characteristics.