solar cells
The most efficient solar cells are now a reality
Hubble solar arrays. (Reference image by NASA/ESA, Wikimedia Commons). Researchers at the National Renewable Energy Laboratory (NREL) of the U.S. Department of energy have created a solar cell, which is a record 39.5% efficient under the global illumination of one sun. This is the most efficient solar cell of all types, measured under standard 1 Solar condition The standard quantity is equal to the irradiance of 100 MW / cm2, which refers to the electromagnetic radiation power received from the sun per unit area within the wavelength range of the…
