Large polaron evidence in the ultrafast THz response of Lead-Halide Perovskites

Eugenio Cinquanta; Daniele Meggiolaro; Silvia G. Motti; Marina Gandini; Marcelo Alcocer; Akkerman Quinten A.; Caterina Vozzi; Liberato Manna; Annamaria Petrozza; Filippo De Angelis; Salvatore Stagira

doi:10.1051/epjconf/201920504019

Proceedings

Open Access

EPJ Web of Conferences 205, 04019 (2019)
https://doi.org/10.1051/epjconf/201920504019

Large polaron evidence in the ultrafast THz response of Lead-Halide Perovskites

Eugenio Cinquanta¹^,2^*, Daniele Meggiolaro³⁴, Silvia G. Motti⁵, Marina Gandini⁵, Marcelo Alcocer¹, Akkerman Quinten A.⁶^,7, Caterina Vozzi², Liberato Manna⁶, Annamaria Petrozza⁵, Filippo De Angelis³^,4 and Salvatore Stagira¹^,2

¹ Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
² CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
³ Computational Laboratory for Hybrid/Organic Photovoltaics, CNR-MS, Via Elce di Sotto 8, I-06123 Perugia, Italy
⁴ D3-CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
⁵ Center for Nano Science and Technology, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, Milan 20133, Italy
⁶ Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
⁷ Dipartimento di Chimica e Chimica Industriale, Universita degli Studi di Genova, Via Dodecaneso, 31, 16146, Genova, Italy

^* Corresponding author: eugenioluigi.cinquanta@polimi.it

Published online: 16 April 2019

Abstract

We unveil the large polaron fingerprints in the transient THz dielectric response of lead-halide perovskites. We clarify the mechanism underlying the physics of charge transport of full-inorganic lead-halide perovskites by combining ultrafast Thz spectroscopy with DFT calculations.

© The Authors, published by EDP Sciences, 2019

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