Investigations on photovoltaic material absorptivity using hyperspectral photoluminescence excitation imaging

Special Issue on ‘Recent Advances in Spectroscopy and Microscopy of Thin-films Materials, Interfaces, and Solar Cells 2021', edited by A. Vossier, M. Gueunier-Farret, J.-P. Kleider and D. Mencaraglia

Open Access

Fig. 2

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(a) Structure of the perovskite stack under study, which is illuminated from the perovskite side. (b) Image of reflection of white light illumination onto the sample at 1.53 eV. (c) Areas of interest determined by clustering from the reflection.

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