Solar traffic signs solar panels

Solar cells through the photoelectric effect or photochemical effects of light energy directly into electrical energy, Solar Traffic sign silicon solar cell power generation series is the most mature, the pros and cons of solar cells, silicon life depends on it. By crystalline silicon material present is generally divided into three categories: monocrystalline, polycrystalline and amorphous silicon. Highest photoelectric conversion efficiency of monocrystalline silicon, mass production efficiency can reach 15%, dominated by large-scale applications and industrial production, high prices. Polycrystalline silicon, amorphous silicon is only about 10% efficiency. In comparison, the lowest cost amorphous silicon, low light effect is good, but the fast decay of amorphous silicon photovoltaic efficiency, stability is not high, so the product should be the main choice for outdoor traffic monocrystalline silicon solar cells. Monocrystalline battery life of up to 15 years, 15 years after its initial photoelectric conversion efficiency can still reach 85%.