Thin Film Solar Film Hits New Highs

Dean Sigler Electric Powerplants, Solar Power, Sustainable Aviation 1 Comment

Imagine covering your electric airplane with a light-collecting, energetic coating that generates enough juice to extend the battery-only range of your electric airplane.  That possibility comes to mind from seeing recent articles about Heliatek’s organic solar cells, which demonstrated a solar-collecting efficiency of 13.2 percent. That’s only about one-third of what the best silicon solar cells can do, but those tend to be relatively thick, heavy, and brittle.  Heliatek has managed to make a six-layer thin-film cell in which the active layers are only 250 nanometers (0.00000984252 inches) thick.   Sandwiched within protective layers and weighing less than a kilogram per square meter (a few ounces per square foot) HeliaFilm™ can be wrapped around a radius of 10 centimeters (just under …