Dr. Michael Saliba

Group Leader University of Fribourg

Biography

Dr. Michael Saliba is a group leader at the Adolphe Merkle Institute in Fribourg, Switzerland. From 2015‐2017, he was a Marie Curie Fellow at EPFL (with a research visit at Stanford University). He studied mathematics and physics at Stuttgart University (BSc) as well as physics at the Max Planck Institute for Solid State Research (MSc, simulation methods for plasmonic oligomers). He completed his PhD at Oxford University in 2014 (with a research visit at Cornell University) working on crystallisation behaviour and plasmonic nanostructures in perovskites. He has an h-index of 40 and published over 80 works in the fields of plasmonics, lasers, LEDs, and perovskite solar cells. Times Higher Education considers him the 3rd most influential scientist in perovskite research based onnumber  of publications and quality. He is also on the 2018 list of ISI Highly Cited Researchers. In 2016, he was awarded the Young Scientist Award of the German University Association. In 2017, he was awarded the Science Award of the Fraunhofer UMSICHT institute, the René Wasserman Award of EPFL, and the Postdoctoral Award of the Materials Research Society (MRS). He was also named as one of the World's 35 Innovators Under 35 by the MIT Technology Review for his pioneering discoveries in the field of perovskite solar cells and optoelectronics. In 2018, he was selected as a Member of the Global Young Academy and the National Young Academy of Germany.

All sessions by Dr. Michael Saliba

The versatility of polyelemental perovskite compositions
04:45 PM

Perovskites have emerged as low-cost, high efficiency photovoltaics with certified efficiencies of 22.1% approaching already established technologies. The perovskites used for solar cells have an ABX3 structure where the cation A is methylammonium (MA), formamidinium (FA), or cesium (Cs); the metal B is Pb or Sn; and the halide X is Cl, Br or I. Unfortunately, single-cation perovskites often suffer from phase, temperature or humidity instabilities. This is particularly noteworthy for CsPbX3 and FAPbX3 which are stable at room temperature as a photoinactive “yellow phase” instead of the more desired photoactive “black phase” that is only stable at higher temperatures. Moreover, apart from phase stability, operating perovskite solar cells (PSCs) at elevated temperatures (of 85 °C) is required for passing industrial norms.

Dr. Michael Saliba

Group Leader University of Fribourg

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