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Regensburg 2016 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 56: Organic-Inorganic Systems III: Electronic Structure (organized by O)

CPP 56.4: Talk

Thursday, March 10, 2016, 16:00–16:15, S051

Electronic Structure of TIPS-Pentacene on Au(111) — •Arnulf Stein and Petra Tegeder — Physikalisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Germany

Functionalized Oligoacenes have moved into the field of view for applications in organic electronic devices during the last years. One representative of this group of organic semiconductors is the triisopropylsilylethynyl-pentacene (TIPS-Pc) which stands out because it combines solubility, self-assembly into π-stacked arrays to enhance intermolecular orbital overlap [1] and vacuum processability [2]. Furthermore it can undergo a singlet fission process [3], which is one possibility to overcome the theoretical Shockley Queisser - Limit. We investigated the TIPS-Pc/Au(111) interface by means of two-photon-photoemission (2PPE) which is one of the most powerful tools to elucidate electronic structures and dynamics of optically excited states at interfaces and within thin films.

[1] J.E. Anthony et al., JACS, 123, 9482 (2001).

[2] A. Gnoli et al. J. Phys. Chem. C, 118, 22522 (2014).

[3] A. J. Musser et al. Nat. Phys. 11, 352 (2015).

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