Efficient spray changes the surface of any object into solar cells
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According to foreign media reports, even after decades of research, the solar panel industry is still faced with two basic problems, that is, high production costs, and the use of efficiency is not high. But now scientists have pinned their hopes on a material called perovskite, which uses its highly efficient spray to make any surface a cheap solar cell. Perovskite is a kind of organic metal with crystal structure and light absorption properties. Its main component is calcium titanate, which has been found all over the world.
Researchers at the University of Scherfeld in the United Kingdom have said that they have found a spray process that can create high-performance perovskite solar cells.
Although perovskite has been discovered for more than 150 years, scientists have only recently begun to study its use and found that it can replace silicon as a semiconductor for solar panels.
Researchers from the University of the United Kingdom in the United Kingdom said they have found a spray process that can create high-perovskid solar cells. If you can succeed, this will undoubtedly be of great significance. Compared to silicon, the process of obtaining perovskite is cheaper. Perovskite light absorption layer is very thin, only about 1 micron, while the silicon light absorbing layer is at least 180 microns thick.
Another question, how efficient is this spray solar cell? At present, researchers can achieve 11% light absorption of perovskite thin layers. The absorption efficiency of traditional solar manufacturing materials is up to 19%, and high-efficiency spray technology is expected to eventually reach similar levels.
This may not sound like a shock, but in fact, nearly 20% of the absorption efficiency for solar panels is already very high. The average light-absorbing efficiency of silicon cells is only 25%. Other materials may be higher but are not currently suitable for use in the manufacture of solar panels.
Perovskites can be uniformly sprayed on any surface to form a thin layer that effectively absorbs light. This thin layer can be used as a solar panel for a car or a mobile device, which does not require the flat surface necessary for a standard solar panel. The structure and characteristics of crystalline silicon panels do not allow too much fluctuation in the surface layer. Installing a solar panel on a mobile phone? Why not? However, researchers at the University of Schaeffler cautioned that the light-absorbing efficiency of sprayed perovskites will decrease with the degree of surface curve.
But more importantly, efficient spray solar cell technology can be applied very easily. The same nozzle can be used to make small solar panels for personal electronics or cars, depending on the size of the surface coverage. In addition, the perovskite solution can also be used to mass produce cheap solar cells and is easier to handle than silicon cells. These features will greatly reduce the potential cost of solar power generation.
In the future, perovskites can replace silicon as a technical standard for solar panels. In just a few years, the absorption efficiency of these solar panels will approach that of silicon cells from single digits. Ultimately, it may become a major breakthrough in our renewable energy field.
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