Thin-film crystalline silicon cell power generation principle and is similar to when the sun light shines on the battery when the battery to absorb light energy generated photo-generated electron – hole pairs, the role of the battery built-in electric field, the photogenerated electrons and holes are separated hole drift to the P side, the electronic drift to the N side, the formation of light-induced voltage, when connected to the external circuit, producing current.
Crystalline silicon thin-film batteries and battery comparison:
Benefits:
(1) low-cost, according to Photon forecasts, is expected to decline in 2012 to 2.08 U.S. dollars / w; estimated average price of thin-film batteries can be from the current 2.65 U.S. dollars / w dropped 1.11 U.S. dollars / w, with the obvious advantages compared to crystalline silicon ; and related thin apple laptop battery
Membrane battery manufacturers more optimistic forecasts, EPV is estimated that by 2011, the cost of thin-film modules will be much lower than 1 U.S. dollars / w; Oerlikon even estimated that in 2011 GW-level power plant will reduce the cost of its components at 0.7 U.S. dollars / w, This is because the conversion rate and scale brought about.
(2) The low light is good
(3) The appropriate combination of photovoltaic power generation and building components (BIPV), stainless steel and polymer substrates for flexible thin film solar cells such as building roofs, according to need to make into a different light transmission rate, instead of the glass curtain wall.
Disadvantages:
(1) low efficiency, monocrystalline silicon solar cells, monomer efficiency of 14% -17% (AMO), while the flexible amorphous silicon solar cell matrix components (about 1000 square centimeters) in efficiency of 10-12%, but also There is a certain gap.
(2), poor stability, it does not focus on stability, reflected in its energy conversion efficiency versus irradiation time, change the extension, until after hundreds or thousands of hours of stability. This problem to a certain extent affected the low-cost solar cell applications.
(3) the same output of electricity needed to increase the size of solar cells, as compared with the crystalline silicon cells, per watt of battery size will increase by about twice the installation space and light the case of limited size limits its application.apple a1008 battery,apple a1012 battery,apple a1022 battery,apple a1039 battery,apple a1057 battery,apple a1060 battery,apple a1061 battery,apple a1078 battery,apple a1079 battery,apple a1148 battery.