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

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Fig. 11

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Comparison between (a) the PL spectra for a 600 nm excitation and (b) reflectivity of the sample in the different areas assessed using white light reflection through equation (15).

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