DYNA-PERO
Probing carrier Dynamics in lead-free Perovskites for solar cells, using state-of-the-art time-resolved spectroscopies
Halide perovskites are a class of materials that have gained significant attention as promising materials for solar cells. However, their stability and their toxicity due to lead content are significant drawbacks that limit their implementation. Lead-free inorganic double perovskites have emerged as a promising alternative, but their efficiency is still limited by their lower carrier mobility. This project aims at understanding the carrier dynamics, and the formation of coupled electron-phonon quasiparticles called ‘polarons’, at play upon photoexcitation, with the goal to identify the carrier mobility limiting factors and the tuning knobs to improve it. To this end, we will implement state-of-the-art time-resolved spectroscopies such as terahertz time-domain spectroscopy and time-resolved Raman spectroscopy.
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