Slow ‘Hot Electrons’ Could Improve Solar Cell Efficiency Updated On Tue, Feb 27th, 2018 by Saurenergy Photons with energy higher than the ‘band gap’ of the semiconductor absorbing them give rise to what are known as hot electrons. The extra energy in respect to the band gap is lost very fast, as it is converted into heat so it does not contribute to the voltage. University of Groningen Professor of Photophysics […] Read more
