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a) Cartoon showing the structure of (Fluo)2PbI4; b,c) Linear absorption and photoluminescence spectra (upon exciting at 420 nm) of (Fluo)2PbI4 versus temperature as indicated in the legend. d) Sketch of the device employed in electroabsorption (EA) experiments done at room temperature. e) EA spectra of the (Fluo)2PbI4 device at different biases. f) EA spectra at 10 V with a simulation composed of a linear combination of derivatives of the absorption bands.
