ÜDS-Fen 2010-1 Soru=61

One can understand from the passage that the newly-developed film ----.

Solar panels turn the sunlight into energy when the
sun shines directly on them, but as soon as the
sunlight decreases, so does efficiency. A new
antireflective film coating could help panels collect
sunshine at 96 per cent efficiency from nearly any
angle. The newly-developed film consists of seven
layers of nanoscopic silicon and titanium-oxide rods
arranged in increasing densities, with the topmost
nearly as porous as air. This funnel-like structure
captures light from almost every direction and focuses
it onto the photovoltaic panel while also inhibiting
reflection. The film, which is about one hundredth as
thick as a human hair, could easily be applied to any
solar panel and would help collect 20 per cent more
light while eliminating the need for the expensive
hardware usually used to rotate solar panels as the
sun moves. Before the new film can be marketed, the
nanoscientists who developed the film must find a
way to protect the outermost layers from wind and
heat, a process that might take another year.