Fig. 3: Comparison of the exciton dynamics of multilayer C60 for hν = 2.9 eV excitation and hν = 3.6 eV excitation. | Nature Communications

Fig. 3: Comparison of the exciton dynamics of multilayer C60 for hν = 2.9 eV excitation and hν = 3.6 eV excitation.

From: Disentangling the multiorbital contributions of excitons by photoemission exciton tomography

Fig. 3

a, c show the time-resolved photoelectron spectra, both normalized and shifted in time to match the intensity of the S3 signals (see Methods for full details on the data analysis). As can be seen in the difference b for hν = 3.6 eV pump we observe an enhancement of the photoemission yield around E − EH ≈ 3.6 eV as well as around E − EH ≈ 2.2 eV. We attribute this signal to the S4 exciton band, which has hole contributions stemming from both the HOMO and the HOMO-1. To further quantify the signal of the S4 exciton, d shows energy distribution curves for both measurements at early delays, showing the enhancement in the hν = 3.6 eV measurement.

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