A team of scientists and researchers have developed a new way to harvest energy from the sun. According to an article on the Idaho National Laboratory’s website, the team developed “nanoantennas” that collect the suns rays on a tiny antennae about 1/25th the size of a human hair. The reports says the antennae could be stamped on just about any flexible material and essentially cost just a few cents per yard of material. To make the idea even better, the product can harvest energy long after sunset.
The team says their “nanoantennas” are more efficient at producing solar energy because they are also able to harvest infrared radiation, released from the earth long after the sun has set below the horizon. It’s also a spectrum that solar cells can’t currently turn into energy. They say while conventional solar cells can harvest about 20% of the sun’s rays, the new technology can harvest 80%.
Now the team will set forth on another challenge, figuring out how to take the harvested energy and turn it into something that’s usable. The frequency of the current generated switches back and forth about ten thousand billion times per second. Your common household appliance cycles power frequencies about 60 times per second. But the future is bright for this invention which could one day coat the roof of our home or be embedded in the clothes we wear.
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