Rahoitus | CEE

A fully transparent solar cell that could make every window and screen a power source


Researchers at Michigan State University have created a fully transparent solar concentrator, which could turn any window or sheet of glass into a photovoltaic solar cell. Researchers are confident that the technology can be efficiently deployed in a wide range of settings from tall buildings with lots of windows to mobile devices. Solar cell is fully transparent because organic salts in solar cell are absorbing specific non-visible wavelengths of ultraviolet and infrared light and then emitting another wavelength of infrared light which is then converted into electricity by conventional photovoltaic solar cells on the edges of solar concentrator. Currently this technology has an efficiency of around 1 %, but researchers think 5 % should be possible. Conventional non-transparent concentrators max out at around 7 %. Although the technology is currently too inefficient for large industrial and commercial applications, it is an important step in the field of solar energy research.

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