Basic electronic knowledge: the principle of solar cell

Solar radiation in the pn junction semiconductors, the formation of new hole – electron pairs in the pn junction under the action of the electric field, P the hole flow from the area sector n, the flow of electronic N of the p-area, connected to the circuit after the training course. vgp bps8 , vgp bps8a , vgp bps9 , vgp bpl9 , vgp bps9/s , vgp bps10,vgp bps2 , vgp bps2a , vgp bps2b , vgp bps2c , vgp bpl2,vgp bps11 , vgp bpl11 , vgp bps13 These are the works of photovoltaic solar cells. 1, production of solar energy, solar energy in two ways, one is light – the heat – the method of converting electricity, and the other is light – electric direct conversion approach. (1) Light – Heat – mode conversion into electricity by using solar radiation generated by power plants, usually from solar to heat absorbed by the refrigerant into steam, then a new generation of steam turbines . Before a process is the light – a process of thermal conversion, after a process of heat – a process of conversion of electricity, the very power that ordinary coal fire. Drawback is that solar thermal efficiency of electricity production is low and the high cost was estimated investment of at least one cup of regular 5 ~ 10 times more expensive plants. 1000MW of a solar thermal power plants need to invest in 20 to 25 billion U.S. dollars, an average of 1kW of investment from 2000 to 2500 U.S. dollars. Therefore, at present can not be applied to small-scale special occasions, while the large-scale economy is very profitable, it is not a regular power plant or nuclear power plants to competition.laptop battery rechargeable ,6400 battery ,  1501 battery  , 6y270,75uyf,c1295,gd761,kd476,td347,u4873,d5318,g5266,hd438,kd186,y9943,fk890,gk479  (2) Light – Electric direct conversion mode this way is to use the photoelectric effect, convert sunlight directly into electrical energy, light – the basic unit is the conversion of solar energy cells . The solar cells is an effect due to solar photovoltaics and control of the device directly into electricity, is a photodiode semiconductor, when the sunlight to the photodiode when the photodiode will be the energy light of the sun into electrical energy, resulting in current. Although a large number of batteries in parallel in series or parallel can be relatively high output power of the phalanx of solar cells. Solar cell is a promising new type of power with a permanent, clean and flexibility of the three major advantages. Solar battery long term, as there is sun, the solar cells can be an investment and long term usage and thermal output of nuclear energy compared to solar cells do not cause environmental pollution; compaq evo n400c battery,compaq evo n410c battery,compaq evo n400 battery,compaq evo n410 battery Dazhong Xiao solar cell can be at times as large as 1 million kilowatts of average power, only a small solar battery pack used, which is unmatched by other energy