Nearly 60 years after researchers first demonstrated a way to convert sunlight into energy, science is still grappling with a critical limitation of the solar photovoltaic cell.
It just isn’t that efficient at turning the tremendous power of the sun into electricity.
And even though commercial solar cells today have double to four times the 6 percent efficiency of the one first unveiled in 1954 by Bell Laboratories in New Jersey, that hasn’t been sufficient to push fossil fuel from its preeminent place in the world energy mix.
But now, alternative energy researchers think that something really small—nanotechnology, the engineering of structures a fraction of the width of a human hair—could give a gigantic boost to solar energy. (See related quiz: “What You Don’t Know About Solar Power.”)
“Advances in nanotechnology will lead to higher efficiencies and lower costs, and these can and likely will be significant,” explains Matt Beard, a senior scientist for the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL). “In fact, nanotechnology is already having dramatic effects on the science of solar cells.”
Written by Patrick J. Kiger. To read the full article, click here