According to a report by the Massachusetts Institute of Technology (MIT) "Technical Review" magazine, scientists at the University of California, Los Angeles (UCLA) have developed a cheap plastic solar cell with a photoelectric conversion efficiency of 10.6%, breaking the team last year. The month created 8.6% of the photoelectric conversion efficiency.
Yang Yang and he developed plastic solar cells.
Plastic solar cells have many advantages: they are soft, lightweight, and inexpensive, but their performance cannot match that of conventional solar cells made of inorganic materials such as silicon. The research team led by Yang Yang, a materials professor at the University of California, Los Angeles, hopes to create a plastic solar cell that rivals thin-film solar cells. Finally, they used a new type of PV plastic developed by Japan's Sumitomo Chemical Industry Co., Ltd. to produce a plastic solar cell with a conversion efficiency of 10.6%. Recent research shows that later scientists can use these "picky" polymer materials to create more efficient batteries.
The new plastic solar cell contains two layers that can handle different wavelengths of light: one layer of plastic can handle visible light and one layer of plastic can handle infrared light. Yang Yang said: "The spectrum of solar energy is very wide. From near-infrared to far-infrared to ultraviolet, a single solar module can't handle it at all."
At present, the best inorganic solar cell is also a multi-layer device, but it has been facing many challenges in order to produce a multilayer organic solar cell. Allen Jay Haeger, who won the 2000 Nobel Prize laureate for his discovery of conductive polymers, said that the polymer can be printed from a solution, just as ink marks on paper, which is the same A major advantage of technology is also a flaw. He said: “Manufacturing multi-layer organic solar cells does not require high temperatures and the manufacturing process is simple, but finding the right solvent for printing on each layer of the battery without penetrating into the underlying layer requires skill. The more layers there are, the The more complicated it becomes. In addition, it is also a challenge to match the electrical properties of each layer."
Yang Yang hopes to create a plastic solar cell with a photoelectric conversion efficiency of 15%. He said that when solar cells are out of the laboratory for commercial production, their efficiency will be reduced by about one-third. Therefore, the conversion efficiency of polymer solar cells with a conversion efficiency of 15% in laboratory tests may be only in practical applications. It is 10%. Yang Yang believes that plastic solar cells with a photoelectric conversion efficiency of 10% should be able to compete with thin-film solar cells.
What is rock wool Sandwich Panel? what is it used for?
The practicability of the rock wool sandwich panel is good, and it has a wide range of applications. Many buildings use this type of panel. But many people don't know much about its materials and uses, so let's introduce it in detail below.
making raw materials
The raw materials of rock wool sandwich panels are generally high-quality basalt, dolomite, etc., mixed according to a certain proportion, melted in a high-temperature blast furnace, and then made into fibers. After cooling, a certain amount of binder is added for rolling, so that the sandwich panel we use every day can be formed. Cutting of different sizes and specifications can be carried out, and the size and specifications of sandwich panels can also be customized.
Application range
In fact, rock wool sandwich panel are not only suitable for daily use in some buildings such as Steel Structure Warehouse, roofs and walls of Prefabricated House, but also can be used for more than 100 yuan, and can be used for soilless cultivation, and its annual use area is wide , City Volunteer Bank is indeed very good. Because it shows a slightly alkaline reaction in the initial stage, it is necessary to pay attention to the pH value when using the nutrient solution. After a period of use, the response will be neutral. Horticultural applications can be carried out according to daily application conditions, as well as water holding capacity, water tension, etc.
Advantages
The building construction industry uses this kind of sandwich panel mainly because of its excellent performance. It has very good fireproof performance, thermal insulation effect, and also has a certain sound absorption effect, so it is very suitable for use as a building material. Moreover, its rigidity is good and its strength is very good, and there will be no problems such as deformation and cracking, and it is also very suitable for long-term use.
Now many manufacturers can provide customized rock wool sandwich panel services. We only need to clarify our needs, choose the appropriate sandwich panel size and specifications, etc., and make an appointment for customization immediately. Moreover, the price of factory direct sales is favorable, the price is high, and it can also provide various services such as transportation and after-sales. It is also guaranteed to choose a reliable manufacturer to cooperate in ordering sandwich panels.
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Henan Jinming Metal Material Co., Ltd. , https://www.hnjmmetal.com