Tom J. Savenije

TL;DR: This work demonstrates substantial mitigation of both non-radiative losses and photoinduced ion migration in perovskite films and interfaces by decorating the surfaces and grain boundaries with passivating potassium halide layers, and demonstrates the inhibition of transient photo induced ion-migration processes across a wide range of mixed halide perovSKite bandgaps in materials that exhibit bandgap instabilities when unpassivated.

TL;DR: Photoluminescence, transient absorption, time-resolved terahertz and microwave conductivity measurements are applied to determine the time scales of generation and recombination of charge carriers as well as their transport properties in solution-processed CH3NH3PbI3 perovskite materials to unravel the remarkable intrinsic properties of the material.

TL;DR: The results underline the importance of the perovskite crystal structure, the exciton binding energy, and the activation energy for recombination as key factors in optimizing new perovSKite materials.

TL;DR: In this paper, the authors unraveled the origin of the poor carrier transport properties of BiVO4, a promising metal oxide photoanode for solar water splitting, and showed that Tungsten doping is strongly decreasing the carrier mobility by introducing intermediate-depth donor defects as carrier traps.

TL;DR: A dopant compensation in alloyed OIHP single crystals is reported to overcome limitations of device noise and charge collection, enabling γ-ray spectrum collection at room temperature.