SAMOP 2021 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 7: Poster 1
MO 7.8: Poster
Donnerstag, 23. September 2021, 17:30–19:30, P
Two-dimensional electronic spectroscopy of phthalocyanine on rare gas clusters — •Ulrich Bangert, Lukas Bruder, and Frank Stienkemeier — Institute of Physics, University of Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg, Germany
Two-dimensional electronic spectroscopy (2DES) is an ideal tool to study dynamics with a high spectral-temporal resolution. With recent advances of 2DES towards the gas phase, versatile samples like rare gas cluster beams have become accessible [1]. Rare gas clusters doped with multiple molecules act as miniature cryostats hosting well defined many body systems. Previous experiments on the spectroscopy and life-time measurements of such systems have provided valuable details about singlet fission and superradiance in acene molecules [2,3].
We apply 2DES to this approach and study free-base phthalocyanine in two different environments: embedded in superfluid helium nanodroplets and deposited on the surface of solid neon clusters. First results show 2D spectra of organic molecules with unprecedented spectral resolution and reveal details of the cluster environment, including the homogenous linewidth of 0.42 cm−1 on neon clusters.
[1] L. Bruder et al., J. Phys. B: At. Mol. Opt. Phys. 52 183501 (2019).
[2] S. Izadnia et al., J. Phys. Chem. Lett. 8, 2068 (2017).
[3] M. Müller et al., Phys. Rev. B 92 (12), 121408 (2015).