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Proceedings Paper

Carrier scattering processes and low energy phonon spectroscopy in hybrid perovskites crystals
Author(s): Jacky Even; Serge Paofai; Philippe Bourges; Antoine Letoublon; Stéphane Cordier; Olivier Durand; Claudine Katan
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Paper Abstract

Despite the wealth of research conducted the last three years on hybrid organic perovskites (HOP), several questions remain open including: to what extend the organic moiety changes the properties of the material as compared to allinorganic (AIP) related perovskite structures. To ultimately reach an answer to this question, we have recently introduced two approaches that were designed to take the stochastic molecular degrees of freedom into account, and suggested that the high temperature cubic phase of HOP and AIP is an appropriate reference phase to rationalize HOP’s properties. In this paper, we recall the main concepts and discuss more specifically the various possible couplings between charge carriers and low energy excitations such as acoustic and optical phonons. As available experimental or simulated data on low energy excitations are limited, we also present preliminary neutron scattering and ultrasonic measurements obtained and freshly prepared single crystals of CH3NH3PbBr3.

Paper Details

Date Published: 14 March 2016
PDF: 8 pages
Proc. SPIE 9743, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices V, 97430M (14 March 2016); doi: 10.1117/12.2213623
Show Author Affiliations
Jacky Even, Univ. Européenne de Bretagne (France)
Serge Paofai, Univ. de Rennes 1 (France)
Philippe Bourges, Lab. Léon Brillouin (France)
Antoine Letoublon, Univ. Européenne de Bretagne (France)
Stéphane Cordier, Univ. de Rennes 1 (France)
Olivier Durand, Univ. Européenne de Bretagne (France)
Claudine Katan, Univ. de Rennes 1 (France)


Published in SPIE Proceedings Vol. 9743:
Physics, Simulation, and Photonic Engineering of Photovoltaic Devices V
Alexandre Freundlich; Laurent Lombez; Masakazu Sugiyama, Editor(s)

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