Time：2015-08-22 18:06:49

In 1839, 19-year-old Frenchman Henri Becquerel doing physics experiments, they found that when irradiated with light of two metal electrodes in the conductive fluid currents will be strengthened, so as to discover the "photovoltaic effect." In 1930, Lang grid for the first time proposing a "photovoltaic effect" solar cell manufacturing to make solar energy into electrical energy. 1932 Audubon Bot and Stola produced the first piece of "CdS" solar cells. 1941 Audubon discovered the photovoltaic effect in silicon. May 1954 Bell Labs Qiabin, Fuller and Pearson developed a 6% efficiency monocrystalline silicon solar cells, which is the world's first practical value of solar cells, the same year the first discovery of arsenic Wick Nickel has a photovoltaic effect, and nickel sulfide deposit rich film on the glass, made of solar cells, convert sunlight into electricity utility photovoltaic technology was born and developed.