53 citations · 141 across the 11 of their papers we have counts for
11 papers
Exceptionally High Two-Photon Absorption in Diazaacene-Bithiophene Derivatives: A Combined Experimental and Theoretical Approach
Gabriel Sauter, Antonia Papapostolou, Audrey Pollien +6
This study delves into the enhancement of two-photon absorption (2PA) properties in diazaacene-bithiophene derivatives through a synergistic approach combining theoretical analysis…
Determination of Energetic Positions of Electronic States and the Exciton Dynamics in a pi-Expanded N-Heterotriangulene Derivative Adsorbed on Au(111)
Jakob Steidel, Ina Michalsky, Mohsen Ajdari +2
Bridged triarylamines, so-called N-heterotriangulenes (N-HTAs) are promising organic semiconductors for applications in optoelectronic devices. Thereby the electronic structure at…
Electronic Properties of Interfaces between N-Heterotriangulene Donors and Strong Tetracyanoquinodimethane Acceptors
Mohsen Ajdari, Ronja Pappenberger, Christian Walla +5
N-heterotriangulenes (N-HTAs) represent a class of functional molecules with high potential for optoelectronic materials, for example as electron donating compounds in donor/accept…
Influence of Core Substitution on the Electronic Structure of Benzobisthiadiazoles
Mohsen Ajdari, Ronja Pappenberger, Caja Annweiler +7
Benzobisthiadiazoles (BBTs) are promising organic semiconductors for applications in field effect transistors and solar cells, since they possess a strong electron-accepting charac…
Electronic Properties of Tetraazaperopyrene Derivatives on Au(111): Energy Level Alignment and Interfacial Band Formation
Arnulf Stein, Daniela Rolf, Christian Lotze +9
N-Heteropolycyclic aromatic compounds are promising organic electron-transporting semiconductors for applications in field effect transistors. Here, we investigated the electronic…
Correlation of Vibrational Excitations and Electronic Structure\\ with Submolecular Resolution
Daniela Rolf, Friedrich Maass, Christian Lotze +4
The detection of vibrational excitations of individual molecules on surfaces by scanning tunneling spectroscopy does not obey strict selection rules but rather propensity rules. Th…
Electronic Structure of an Iron-Porphyrin Derivative on Au(111)
Arnulf Stein, Daniela Rolf, Christian Lotze +3
Surface-bound porphyrins are promising candidates for molecular switches, electronics and spintronics. Here, we studied the structural and the electronic properties of Fe-tetra-pyr…
Relaxation Dynamics of Photoexcited Charge Carriers at the Bi(111) Surface
Christopher Bronner, Petra Tegeder
Bi possesses intriguing properties due to its large spin-orbit coupling, e.g. as a constituent of topological insulators. While its electronic structure and the dynamics of electro…
Unoccupied electronic band structure of the semi-metallic Bi(111) surface probed with two-photon photoemission
Christopher Bronner, Petra Tegeder
While many photoemission studies have dealt with both the bulk band structure and various surface states and resonances, the unoccupied electronic structure above the Fermi level o…
Electronic structure of a subnanometer wide bottom-up fabricated graphene nanoribbon: End states, band gap and dispersion
C. Bronner, F. Leyssner, S. Stremlau +4
Angle-resolved two-photon photoemission and high-resolution electron energy loss spectroscopy are employed to derive the electronic structure of a sub-nanometer tomically precise q…
Azobenzene versus 3,3',5,5'-tetra-tert-butyl-azobenzene (TBA) at Au(111): Characterizing the role of spacer groups
Erik R. McNellis, Christopher Bronner, Jorg Meyer +3
We present large-scale density-functional theory (DFT) calculations and temperature programmed desorption measurements to characterize the structural, energetic and vibrational pro…