Photos turned into solar panels Bashny.Net

Scientists Finnish Aalto University (Aalto-yliopisto Fin.) Created a picture that could generate electricity. The developed method allows them to print solar cells of almost any shape and color.




For the last ten years, researchers around the world are working on the technology of creating solar cells through inkjet printing. It attracts scholars low price and the ability to reduce the amount of industrial waste. Typically, in this process are organic or dye-sensitized solar cells. "We wanted to go ahead and check whether these materials to print on an inkjet printer, images and text, as well as traditional ink" - explains Janne Hulme (Janne Halme), one of the authors of the study

. Conventional ink absorbing light, heat, and photoelectric convert some of this energy into electricity. At the same time the deeper the color (and a darker shade), the electricity anymore. The most productive solar panels - black. The basic idea of ​​creating a color bar image was to combine on one surface and photocells, and visual information. "For example, mounted on a small electronic device power, these batteries will be part of the design, and at the same time will be able to supply the unit with energy", - says Hulme

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Colorant and an electrolyte to create images provided researchers École Polytechnique Fédérale de Lausanne (fr. École polytechnique fédérale de Lausanne). "The hardest thing was to find a suitable solvent for dyes and choose the parameters that will provide accurate and uniform print", - says member of the research group Merve Ozkan (Merve Özkan)

. Inkjet printing has allowed scientists to create the image of the desired size and shape, adjust the colors and transparency. "Solar cells, printed on a printer, were as efficient and durable as batteries manufactured in the traditional way. They endured more than a thousand hours of light and heat stress without compromising performance, "- concludes Ghufran Hashmi (Ghufran Hashmi), one of the study's authors.