Scientists have developed a new type of solar cell. Solar cells are composed of nanowires, which gather sunlight in a way that makes sunlight more than 15 times stronger. Using new solar cells, more electricity can be obtained from solar energy.
The researcher wrote in the journal Natural photonics. They use nanowires that are 10,000 times smaller in diameter than human hair.
Nanowires greatly enhance sunlight. This is because the diameter of the wire is smaller than the wavelength of light. This ensures that sunlight is reflected and light is more concentrated where solar energy is converted into electricity. All in all, this leads to more efficient solar cells, or solar cells that convert a greater proportion of incident solar energy into electrical energy.
In fact, solar cells are said to be so efficient that they break the amazing Shockley-Quisel limit. Under this restriction, under certain conditions, we will never be able to convert more than 33.7% of solar energy into electricity. Solar cells composed of nanowires seem to exceed this limit by a few percentage points.
The researchers emphasized that it may take a while before we see these solar cells appear on the streets. Of course, it will take several years for scientists to produce solar cells on a large scale.