Business Club December 26th The German “Spiegel†weekly website reported on December 23 that solar cells on the roof are environmentally friendly and can save money for the owner. But they first need a lot of investment, and they are too bulky. This is not the case with the new special paint developed by the University of Notre Dame in the United States: it can be painted directly on the wall, and then it can generate electricity.
The scientific team led by Prashant Karmat wrote in the monthly ACS Nano that the paint contains semiconductor particles. This kind of nanoparticle called "quantum dot" consists of Titanium Dioxide. Titanium dioxide nanoparticles were coated with cadmium or cadmium selenide, and then placed in a mixture of alcohol and water to form a viscous paste.
When applied to a transparent conductive material, the paint converts light into electricity. "This coating can be applied to any conductive surface without special tools," says Kamart. His research work was funded by the U.S. Department of Energy.
Kamart admits that the photoelectric conversion rate of the paint so far is only 1%, which is insignificant compared with the photoelectric conversion rate of advanced silicon solar cells of 10% to 15%. However, silicon solar cells are expensive and the manufacturing process is complicated. "Our coatings can be produced in large quantities and cheaply," he said. The scientist hopes that if it can increase the photoelectric conversion rate of this kind of coating further, then it can play an important role in the future energy supply.
The scientific team led by Prashant Karmat wrote in the monthly ACS Nano that the paint contains semiconductor particles. This kind of nanoparticle called "quantum dot" consists of Titanium Dioxide. Titanium dioxide nanoparticles were coated with cadmium or cadmium selenide, and then placed in a mixture of alcohol and water to form a viscous paste.
When applied to a transparent conductive material, the paint converts light into electricity. "This coating can be applied to any conductive surface without special tools," says Kamart. His research work was funded by the U.S. Department of Energy.
Kamart admits that the photoelectric conversion rate of the paint so far is only 1%, which is insignificant compared with the photoelectric conversion rate of advanced silicon solar cells of 10% to 15%. However, silicon solar cells are expensive and the manufacturing process is complicated. "Our coatings can be produced in large quantities and cheaply," he said. The scientist hopes that if it can increase the photoelectric conversion rate of this kind of coating further, then it can play an important role in the future energy supply.
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