Heliafilm – superior low light and high temperature energy harvesting performance.
Note that number, 13.2%. Heliatek, in its research for new organic absorber materials, said it set a new organic photovoltaic (OPV) world record for the direct conversion of sunlight into electricity using OPV multi-junction (using more than one material) cell, thanks to the “excellent low light and high temperature behavior of the organic semiconductor.”
Heliatek said they had a small molecule, vacuum deposition process on a plastic film substrate. The cell is a multi-junction cell combining 3 absorbers. Each of them is dedicated to convert green-, red- or near-infrared light of the wavelength range between 450 and 950 nm into electricity. The substrate or bottom layer is flexible plastic; CleanTechnica said “the whole thing can be put together using conventional, high volume vacuum deposition and roll-to-roll technology, which accounts for its low cost.”
“Heliatek has this idea that one day, cars will be covered in solar coatings that will enable you to charge up while scooting down the highway or parked in a sunny spot. That’s the big picture. For now, Heliatek is focusing on replacing your sun roof with an organic solar cell window treatment, and the company has just announced a major step forward in the efficiency of its organic solar cells.” Heliatek has a roadmap towards 15% efficient organic solar cells.
Apps: A free range extender for electric vehicles as well as a gas-saver for gasmobiles or hybrids. The solar-equipped sun roof would also enable you to operate electronic equipment while parked, without sacrificing battery range.” For the trucking industry, there would be in shaving power consumption during peak use times.
As for organic photovoltaics in general, they are on the rise, said NanoFlex Power Corporation. “Organic electronics have gained rapid acceptance in the electronic display industry due to their low cost and ultra-thin, flexible form factor. Organic technology can also be applied to solar photovoltaics to completely redefine the way solar cells are fabricated and how and where solar power is used.”
“NanoFlex Power Corporation is developing a solar photovoltaic paint that will. It ditches the more common inorganic silicon or gallium-arsenide photovoltaic chemistry for a new organic (carbon-based) semiconductor chemistry. This setup can be applied extremely thin and can be virtually clear for use even as a window film.” http://techxplore.com/news/2016-02-photovoltaic-cells-heliatek-conversion-efficiency.html
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