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Ferdinand Grozema: Charge and excited state dynamics in hybrid halide perovskites

Wanneer:vr 07-10-2016 13:45 - 14:45
Waar:5115.0017

The dynamics of excited states and charges in hybrid halide perovskites are of key importance for the understanding of their exceptional performance in solar cells. Moreover, a thorough understanding will also give direction to the design of new materials with improved functionality for solar cells and other applications. In this work we have used time-resolved conductivity techniques to study the mobility of charges, both in the most commonly studied 3D lead halide perovskites and in more stable multilayer 2-dimensional materials. It is shown that the multilayer materials give an additional  handle to tune several properties, including the band gap and the exciton binding energy.