Researchers at Martin Luther University Halle-Wittenberg (MLU) have discovered a new method to increase the efficiency of solar cells by a factor of 1,000. The team of scientists achieved this breakthrough by creating crystalline layers of barium titanate, strontium titanate, and calcium titanate, which were alternately placed on top of one another in a lattice structure.
If you live somewhere reasonably sunny, you can expect about 1 kW per square meter during the sunniest part of the day. To charge something like a 15 kWh electric motorcycle battery, you’d need 15 square meters of 100% efficient panels.