July 28 news, according to media reports, the new technology uses steam instead of liquids, and the temperature is also not up to 120 degrees Celsius. These "relatively mild" environments enable people to use common, untreated paper, cloth, and plastics. As a substrate, a solar cell is printed thereon. Scientists at the Massachusetts Institute of Technology developed a new "ink" that deposits on the surface of paper or other soft fabrics to print out photovoltaic cells.
The latest technology is very different from most current methods of manufacturing solar cells. The new technology uses steam instead of liquid, and the temperature is also not up to 120 degrees Celsius. These "relatively mild" environments allow people to use commonly used, untreated paper, cloth, and plastic as substrates on which solar energy is printed. battery.
The new technology provides a cheap way to manufacture solar cells on a large scale. This technique, known as vapor deposition, is a little more complicated than printing ordinary documents. To print a photovoltaic cell array on paper, five layers of material must be deposited on the paper, and the process must be performed in a vacuum.
The latest technology can use ordinary, untreated paper, including printing paper, thin paper, carbon paper, and even newspapers, and the results are good. Even after the paper is folded into paper airplanes, the solar cells on it can still work. Scientists also printed out a solar cell on a thin PET plastic and folded it open 1000 times without affecting its performance.
The latest paper solar cell conversion efficiency is about 1%, but scientists believe that as they continue to improve the material, the conversion efficiency can be greatly improved. MIT's research is very exciting. Many scientists in the field of solar cell research are focused on the development of large-scale solar cells. In fact, the application of small solar cells is also very extensive.
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