According to media reports, according to media reports, the new technology uses steam instead of liquid, and the temperature is less than 120 degrees Celsius. These "relatively mild" environments enable people to use commonly used, untreated paper, cloth, plastic. As a substrate, a solar cell is printed thereon. MIT scientists developed a new "ink", which is deposited on the surface of paper or other soft fabric, can print out the photovoltaic cells.
The latest technology is very different from most modern methods of making solar cells. The new technology uses steam instead of liquid, and temperatures are less than 120 degrees Celsius. These “relatively mild†environments allow people to use commonly used, untreated paper, cloth, and plastic as substrates to print solar energy on them. battery.
The new technology provides an inexpensive way to manufacture solar cells on a large scale. This technique, called vapor deposition, is a bit more complicated than printing a common document. To print a photovoltaic array on paper, five layers of material need to be deposited on the paper, and the process must be done in a vacuum.
The latest technology can use ordinary, unprocessed paper, including printing paper, tissue paper, carbon paper, and even newspapers, and the effect is very good, even after the paper is folded into a paper plane, the solar cells on it can still work. Scientists also a thin PET plastic print out a solar cell, and is folded open 000 times, and its performance is not affected.
The latest conversion efficiency of this type of paper solar cell is about 1%, but scientists believe that as they continue to improve the material, conversion efficiency can be greatly improved. The MIT research is very exciting, and many scientists in the field of solar cell research are focusing on the development of large-scale solar cells. In fact, small solar cells are also widely used.
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