It is understood that the research was carried out by researchers such as Kaltenbrunner, Bauer and Coppler from the University of Austria, together with researchers such as the Magic University of Tokyo. The research team successfully developed the world's thinnest and lightest solar cell by evenly coating an organic semiconductor-coated ink on an ultra-thin plastic film substrate with a thickness of only 1.4 microns.
The research team said in a report published in the online science journal Nature News that the device is thinner than a spider silk. The University of Tokyo researcher Amazing just pointed out: "Ultra-thin to people can hardly feel its weight, even if it is so thin, it is also flexible."
Researchers say that the world's thinnest solar cell is known to be 25 microns thick, and the new product developed this time is only about 1/14th the thickness. This research has succeeded in achieving ultra-lightweight and ultra-thin solar cells, and is expected to further drive solar cells for mobile devices such as smart phones. People can carry this thin solar cell with them to charge the electronic device, and the elderly can also use it to replace the battery in the health test instrument that is carried around.
This thin and light solar cell conversion rate is 4.2%, although it is inferior to the existing solar cell 10%-20% conversion level, but because the product can be bent like hair, and the conversion rate after bending will not be affected. It can be maintained at 4.2%, and the production of this product requires no complicated processes and high-priced production equipment, so it can be mass-produced at low cost.
The solar cell generates 10 watts per gram of electricity, and at the same weight, it can generate up to 25 times the amount of rooftop solar cells installed in existing homes. It is understood that the research team plans to continue to improve the materials of the power generation layer, and hopes to increase the photoelectric conversion rate of the solar cell to 10%, and realize commercial production within 5 years and invest in the market.
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