New film in silicon solar energy performance
New Film on Silicon Solar Energy Performance:
photovoltaic technology - prices, offersAt this stage, silicon solar cells they mainly absorb near-infrared light and visible light and cannot use all the light properly. In this regard, American scientists do not want to waste any light and have developed a new type of solar panel design that can convert light wavelengths into silicon crystal cells that can absorb the spectrum, ultimately improving the conversion efficiency of solar energy .
Current solar panels we can say that they ignore shorter wavelengths of light, such as ultraviolet and blue light. In the past, scientists have tried various solar cell designs, such as using different materials or pigments such as calcium that can absorb blue and green light Titanite cells, organic solar cells available indoors, but limited progress so far.
New Discovery
New York University's Tandon School of Engineering has made a breakthrough and developed a special film that can convert ultraviolet and blue light into near-infrared light, helping to improve the performance of existing silicon solar panels and, most importantly, avoid exposure in solar cells. UV light, extending the life of the battery, the film will not prevent the capture of infrared light from the silicon solar energy.
The new film is made of an inorganic perovskite material impregnated with a small amount of ytterbium. As mentioned above, perovskite is good at absorbing blue light, channeling light into ytterbium, emitting near-infrared light, and finally receiving it from solar cells silicon. Complete the "Nutrition Transfer".
The team's tests also found that the film can convert blue light into red light with an efficiency of 82,5%. In further improvement research, in addition to reducing bismuth escaping from the material, the new film can also convert up to and 95 % blue light to red light Finally, perhaps There is a chance to exceed 100% blue-to-red light conversion efficiency.
