Abstract
Organo-metallic perovskite crystals are widely known for their ability to boost the performance of solar cells, with efficiencies reaching 25% and beyond. This is because photons of light can mobilise electrons in these materials with very high efficiency. Professor László Forró and his team at Ecole Polytechnique Fédérale de Lausanne have realised that this same ability could be harnessed in the development of high-performance sensors that detect photons of various energies. By integrating perovskite with graphene or carbon nanotubes, the team’s detectors show outstanding sensitivity, with the ability to detect single photons. Their technologies are leading to new applications ranging from more sensitive medical diagnostics, to safer nuclear reactors.
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