Università Cattolica del Sacro Cuore

Time- and energy-resolved study of Fano Resonances in Halide Perovskite Nanoparticles

 June 4 2019

Sala Riunioni -  Time: 14.00
Via Musei 41, Brescia (Italy)

Seminar lecture in the framework of International doctoral school in Science


PhD student Andrea RONCHI
KU Leuven

PhD student Paolo FRANCESCHINI
Università Cattolica del Sacro Cuore & KU Leuven

In the last decades, lead halide perovskites have attracted great scientific interest due to their outstanding properties, such as high absorption coefficients, tunable band-gaps and emission wavelengths, long carrier diffusion lengths, and room temperature excitons. These features, combined with low-cost fabrication methods, determined their key role in the development of high-efficiency photovoltaic solar cells (with power conversion efficiency exceeding 20%) and optoelectronic devices. Recently, halide perovskite nanoparticles have been also proposed as white-light emitting metadevices since they exhibit hybrid tunable Fano resonances that originate from the coupling of the excitons to the geometry-induced Mie modes. Here we will present time- and energy-resolved pump-probe measurements showing how the tunable Fano resonance strongly influences the out-of-equilibrium dynamics of these systems.