The solar cell power generation system is also called the solar photovoltaic power generation systems. Photovoltaic power generation, its basic principle is 'photovoltaic effect'. Photons illuminate to metal, its energy can be absorbed by all metal in an electronic, electronic absorption energy is enough big, can
the solar cell power generation system, also known as solar photovoltaic power generation systems. The basic principle of photovoltaic power generation is the 'photovoltaic effect'. When photons illuminate metal, its energy can be absorbed by the electrons in a metal completely. Electronic absorption energy is enough big, can overcome the internal force of the metal work, and escape from the metal surface become photoelectron. However, when the sunlight on solar cells, batteries to absorb light energy and generate photoelectron - An empty hole. The built-in electric field under the action of the battery and, optoelectronics and empty hole separation, lead to the accumulation of different charge, namely 'light voltage', hereinafter referred to as 'light born v effect' or 'photovoltaic effect'. Solar energy is inexhaustible. Solar irradiation on the earth is so great. Shine on the earth, about 40 minutes enough solar energy to make global human consume energy in a year. Solar power is absolutely clean, do not produce pollution, no pollution. Therefore, solar energy is known as the ideal clean renewable energy, is an important substitute for traditional fossil energy. Given along with our country's current economic rapid development of the serious situation of high energy consumption, high pollution industry rapid growth, rely on science and technology to accelerate the development and dissemination of technology is an effective way to solve this problem. Form of a series of effective utilization of solar energy, including photovoltaic power generation, will spread all over the world play an important role in the process of energy saving and emission reduction.