Organo-lead Tri- Halides Perovskites for Highly Efficient Solar Cells: Photophysical versus Structural Properties

Annamaria Petrozza^a

Proceedings of International Conference Solution processed Semiconductor Solar Cells (SSSC14)

Organizers: Henry Snaith and Samuel Stranks

Invited Speaker, Annamaria Petrozza, presentation 093
Publication date: 1st July 2014

Here we present a comprehensive picture of the main photophysical properties of methyl ammonium lead tri-iodide perovskite (CH₃NH₃PbI₃) and its Chlorine-doped counterpart ( Cl-doped CH₃NH₃PbI₃) with a particular focus on the structure-optical properties relationship, emphasizing the role of the interfaces from a molecular to mesoscopic level. By combining optical, vibrational, and structural investigations we investigate time scale and dynamics of carriers thermalization, state filling effect, band gap renormalization, exciton formation, and ionization and we correlate them to the thin film morphology.

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