Fig. 5: Modification of the Ce6T emission properties under the ESC of its Soret band. | Nature Communications

Fig. 5: Modification of the Ce6T emission properties under the ESC of its Soret band.

From: Electronic strong coupling modifies the ground-state intermolecular interactions in self-assembled chlorin molecules

Fig. 5

A The cavity transmittance spectrum (red-shaded curve) shows the splitting of the Ce6T Soret band (black dotted curve) and the formation of the polaritonic states under ESC. B The emission spectrum of Ce6T under the ESC of the Soret band (red curve) and in a non-cavity (black curve). The Ce6T-PS film thickness is c.a. 100 nm for the ESC and non-cavity samples, and the excitation wavelength is 440 nm. C The angle-resolved emission plot of Ce6T under the ESC of the Soret band shows the non-dispersive emission and the absence of polaritonic character. To measure the dispersion, we prepared Fabry-Perot cavities using Ag mirrors. D The excitation spectra of the Soret band strongly coupled Ce6T (red-shaded curve) and the non-cavity Ce6T (blue-shaded curve). We recorded the excitation spectra following the emission at 770 nm. E Schematic illustration of the excimer-like exciton formed between two interacting Ce6T molecules in a non-cavity film upon spin coating (top panel). The bottom panel shows the Ce6T molecules with suppressed intermolecular interaction under ESC.

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