The University issued a press release which focuses on our groups latest Nature Communications article (“Long-lived hot-carrier light emission and large blue shift in formamidinium tin triiodide perovskites“)
“Slow ‘hot electrons’ could improve solar cell efficiency”
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 and Optoelectronics Maria Antonietta Loi has now found a material in which these hot electrons retain their high energy levels for much longer. This might make it possible to use more of their energy to obtain a higher voltage. Her results were published on 16 January in Nature Communications.
The story also prompted an article in the renowned Dutch newspaper NRC