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5 March 2021 Disentangling processes in transient photoluminescence experiments (TR-PL and TR-FLIM) on lead halide perovskite absorbers thanks to novel analysis of short time dynamics
Guillaume Vidon, Stefania Cacovich, Marie Legrand, Daniel Ory, Daniel Suchet, Jean-Baptiste Puel, Jean-François Guillemoles
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Proceedings Volume 11681, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices X; 116810H (2021) https://doi.org/10.1117/12.2576855
Event: SPIE OPTO, 2021, Online Only
Abstract
Short time carrier dynamics of transient photoluminescence decays contain valuable information on the optoelectronic properties of photovoltaic materials. We perform a theoretical analysis on short time dynamics to provide scaling laws for the time derivative of the transient photoluminescence signal as a function of both laser excitation power and wavelength . This innovative approach allowed us to extract in a simple and effective manner the external radiative recombination rate and was tested on different absorbers such as state-of-the-art triple cation mixed halide perovskite and III-V materials. Moreover, by coupling this analysis with the fitting of the whole PL decay, we have quantified different transport parameters and precisely estimated their uncertainties.
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Guillaume Vidon, Stefania Cacovich, Marie Legrand, Daniel Ory, Daniel Suchet, Jean-Baptiste Puel, and Jean-François Guillemoles "Disentangling processes in transient photoluminescence experiments (TR-PL and TR-FLIM) on lead halide perovskite absorbers thanks to novel analysis of short time dynamics", Proc. SPIE 11681, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices X, 116810H (5 March 2021); https://doi.org/10.1117/12.2576855
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KEYWORDS
Perovskite
Luminescence
Lead
Diffusion
Absorption
Interfaces
Material characterization
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