Samuel Schöpa, Lina Bielke, Falk-Erik Wiechmann, Franziska Fennel, Dieter Bauer
Phase structure of below-threshold harmonics in aligned molecules: A few-level model system
Phys. Rev. Research, 8, L022022 (2026)

Lina Bielke, Samuel Schöpa, Falk-Erik Wiechmann, Franziska Fennel, Dieter Bauer
High-harmonic generation from two weakly coupled molecules: A simple tight-binding model
Phys. Rev. A, 113, 043106 (2026)

Falk-Erik Wiechmann, Samuel Schöpa, Lina Bielke, Svenja Rindelhardt, Serguei Patchkovskii, Felipe Morales, Maria Richter, Dieter Bauer, Franziska Fennel
High-order harmonic generation in an organic molecular crystal
Nat. Commun., 16, 9890 (2025)

Nils leCoutre, Tolibjon Abdurakhmonov, Paul Weinbrenner, Kenji Watanabe, Takashi Taniguchi, Tobias Korn, Franziska Fennel, Oliver Kühn, Friedemann Reinhard 
Growth of Few-Layer Molecular Crystals of PTCDI on Hexagonal Boron Nitride by Microspacing Air-Gap Sublimation 
ACS Appl.Opt.Mater., 3, 455 (2025)

Richard Altenkirch, Christian Peltz, Tom Böttcher, Stefan Lochbrunner, Franziska Fennel and Thomas Fennel
Ultrafast imaging of laser-induced modifications in planar targets via single-shot in-line holography
New J. Phys., 26, 113010 (2024)

Leandro D. Mena, José L. Borioni, Sofia Caby, Patrick Enders, Miguel A. Argüello Cordero, Franziska Fennel, Robert Francke, Stefan Lochbrunner, Javier I. Bardagi 
Quantitative prediction of excited-state decay rates for radical anion photocatalysts
Chem. Commun. 59, 9726–9729 (2023)

David Bialas, Franziska Fennel, Niklas Noll, Marco Holzapfel, Alexander Schmiedel, Christoph Lambert, Frank Würthner
Supramolecular p/n-heterojunction of C60-functionalized bis(merocyanine) quadruple stack: A model system for charge carrier separation and recombination in organic solar cells
Nat. Sci. 2, e210430 (2022)

Anton Georgiev, Vera Deneva, Dancho Yordanov, Tim Völzer, Steffen Wolter, Franziska Fennel, Stefan Lochbrunner, Liudmil Antonov 
Benzothiazol picolin/isonicotinamides molecular switches: Expectations and reality
J. Mol. Liq., 356, 118968 (2022)

Tim Völzer, Franziska Fennel, Tobias Korn, Stefan Lochbrunner
Fluence-dependent dynamics of localized excited species in monolayer versus bulk MoS2
Phys. Rev. B 103, 045423 (2021)

Chris Rehhagen, Matthias Stolte, Stefanie Herbst, Markus Hecht, Stefan Lochbrunner, Frank Würthner, Franziska Fennel
Exciton Migration in Multistranded Perylene Bisimide J-Aggregates
J. Phys. Chem. Lett. 11, 6612 (2020) 

V. Deneva, N.G. Vassilev, S. Hristova, D. Yordanov, Y. Hayashi, S. Kawauchi, F. Fennel, T. Völzer, S. Lochbrunner, L. Antonov 
Chercher de l'eau: The switching mechanism of the rotary switch ethyl-2-(2(quinolin-8-yl)hydrazono)-2-(pyridin-2-yl)acetate
Comp. Mater. Sci. 177, 109570 (2020)

Chris Rehhagen, Matthias Stolte, Stefanie Herbst, Markus Hecht, Stefan Lochbrunner, Frank Würthner, Franziska Fennel
Exciton Migration in Multistranded Perylene Bisimide J-Aggregates
J. Phys. Chem. Lett. 11, 6612 (2020) 

V. Deneva, N.G. Vassilev, S. Hristova, D. Yordanov, Y. Hayashi, S. Kawauchi, F. Fennel, T. Völzer, S. Lochbrunner, L. Antonov 
Chercher de l'eau: The switching mechanism of the rotary switch ethyl-2-(2(quinolin-8-yl)hydrazono)-2-(pyridin-2-yl)acetate
Comp. Mater. Sci. 177, 109570 (2020)

Eva Kirchner, David Bialas, Franziska Fennel, Matthias Grüne and Frank Würthner
Defined Merocyanine Dye Stacks from a Dimer up to an Octamer by Spacer-Encoded Self-Assembly Approach 
J. Am. Chem. Soc. 141, 7428, (2019) 

Richy Hauptmann, Andranik Petrosyan, Franziska Fennel, Miguel A. Argueello Cordero, Annette-E. Surkus, Jola Pospech
Pyrimidopteridine N-Oxide Organic Photoredox Catalysts: Characterization, Application and Non-Covalent Interaction in Solid State
Chem. Eur. J. 25,4325 (2019)

Yong Liu, Yongjie Zhang, Franziska Fennel,  Wolfgang Wagner, Frank Würthner, Yuanfanh Chen, Zhijian Chen
Coupled Cooperative Supramolecular Polymerization: A New Model Applied to the Competing Aggregation Pathways of an Amphiphilic aza-BODIPY Dye into Spherical and Rod-Like Aggregates
Chem. Eur. J. 24, 16388 (2018)

Jakub Dostal, Franziska Fennel, Federico. Koch, Stefanie Herbst, Frank Würthner, Tobias Brixner
Direct observation of exciton-exciton interactions
Nat. Commun. 9, 2466 (2018)

Franziska Fennel, Jana Gershberg, Matthias Stolte, Frank Würthner
Fluorescence quantum yields of dye aggregates: a showcase example based on self-assembled perylene bisimide dimers
Phys. Chem. Chem. Phys. 20, 7612, (2018)  

Tim Völzer, Matthias Lütgens, Franziska Fennel, Stefan Lochbrunner
Recombination dynamics of optically excited charge carriers in bulk MoS₂
J. Phys. B 50, 194003 (2017)

Stella Schmode, Andranik Petrosyan, Franziska Fennel, Alexander Villinger, Stefan Lochbrunner, Ralf Ludwig
Large Stokes Shift Ionic-Liquid Dye
Angew. Chem. Int. Ed.56, 8564 (2017)

Y. Manolova, H. Marciniak, S. Tschierlei, F. Fennel, F. S. Kamounah, S. Lochbrunner, L. Antonov
Solvent control of intramolecular proton transfer: is 4-hydroxy-3-(piperidin-1-ylmethyl)-1-naphthaldehyde a proton crane?
Phys. Chem. Chem. Phys. 19, 7316 (2017)

Per-Arno Plötz, Sergehij Polyutov, Sergheij Ivanov, Franziska Fennel, Steffen Wolter, Thomas Niehaus, Zengqi Xie, Stefan Lochbrunner, Frank Würthner, Oliver Kühn
Biphasic aggregation of a perylene bisimide dye identified by exciton-vibrational spectra
Phys. Chem.Chem. Phys. 18, 25110 (2016)

Jana Gershberg, Franziska Fennel, Thomas H. Rehm, Stefan Lochbrunner, Frank Würthner
Anti-cooperative supramolecular polymerization: a new K₂-K model applied to the self-assembly of perylene bisimide dye proceeding via well-defined hydrogen-bonded dimers
Chem. Sci. 7, 1729, (2016)

Franziska Fennel, Stefan Lochbrunner
Exciton-exciton annihilation in a disordered molecular system by direct and multistep Förster transfer
Phys. Rev. B 92, 140301, (2015) 

Franziska Fennel, Steffen Wolter, Zengqi Xie, Per-Arno Plötz, Oliver Kühn, Frank Würthner, Stefan Lochbrunner
Biphasic Self-Assembly Pathways and Size-Dependent Photophysical Properties of Perylene Bisimide Dye Aggregates
J. Am. Chem. Soc. 135, 18722, (2013)

Steffen Wolter, Janis Aizezers, Franziska Fennel, Marcus Seidel, Frank Würthner, Oliver Kühn, Stefan Lochbrunner
Size-dependent exciton dynamics in one-dimensional perylene bisimide aggregates
New J. Phys. 14, 105027 (2012) 

Franziska Fennel,Stefan Lochbrunner 
Förster-mediated spectral diffusion in disordered organic materials 
Phys. Rev. B 85, 094203, (2012)

Franziska Fennel, Stefan Lochbrunner 
Long distance energy transfer in a polymer matrix doped with a perylene dye 
Phys. Chem. Chem. Phys. 13, 3527, (2011)