Kahnt, Axel

Dr. Axel Kahnt

  • Job title: Postdoc
  • Organization: Department of Chemistry and Pharmacy
  • Working group: Chair of Physical Chemistry I (Prof. Dr. Guldi)
  • Phone number: +49 9131 85-27324
  • Fax number: +49 9131 85-28307
  • Email: axel.kahnt@fau.de
  • Website:
  • Address:
    Egerlandstraße 3
    91058 Erlangen
    Room P 2.56


Diploma Thesis:

Photosensibilisierter Elektronentransfer in ionischen Farbstoffsystemen am Beispiel ausgewählter Heptamethincyaninboratsysteme.

PhD Thesis:

Fullerene – supermolekularer Elektronentransfer und radikalische Reaktionsmechanismen

Book Contributions:

Charge transfer between porphyriny / phthalocyanines and carbon nanostructures, B. Grimm, A. Hausmann, A. Kahnt, W. Seitz, F. Spänig, D. M. Guldi. In : Handbook of Porphyrin Science (Ed: K. M. Kadish, K. M. Smith, R. Guilard) World Scientific Publishing 2010, 1, 133-219.

Refereed Publications:

  1. Shedding Light into the Soft and Efficient Free Radical Induced Reduction of Graphene Oxide: Hidden Mechanisms and Energetics, A. Kahnt, R. Flyunt, S. Naumov, W. Knolle, S. Eigler, R. Hermann, B. Abel, RSC Adv., 2016, DOI: 10.1039/C6RA13085B.
  2. Regio-, Stereo-, and Atropselective Synthesis of C60 Fullerene Bisadducts by Supramolecular-Directed Functionalization, G. Bottari, O. Trukhina, A. Kahnt, M. Frunzi, Y. Murata, A. Rodríguez-Fortea, J. M. Poblet, D. M. Guldi, T. Torres, Angew. Chem. Int. Ed. 2016, DOI: 10.1002/anie.201602713.
  3.  Synthesis, electrochemical and photophysical characterization of new 4,4′-π-conjugated 2,2′-bipyridines end-capped with an cyanoacrylic acid and its ester, A. Fingerhut, Y. Wu, A. Kahnt, J. Bachmann, S. B. Tsogoeva, Chem. Asian J. 2016, 11, 1232.
  4. High quality reduced graphene oxide flakes by fast kinetically controlled and clean indirect UV-induced radical reduction, R. Flyunt, W. Knolle, A. Kahnt, C. E. Halbig, A. Lotnyk, T. Häupl, A. Prager, S. Eigler, B. Abel, Nanoscale, 2016, 8, 7572.
  5. Benefits of using BODIPY-Porphyrin Dyads for Developing Deep-Red Lighting Sources, M. D. Weber, V. Nikolaou, J. E. Wittmann, A. Nikolaou, P. A. Angaridis, G. Charalambidis, C. Stangel, A. Kahnt, A. G. Coutsolelos, R. Costa, Chem. Commun. 2016, 52, 1602.
  6. How Fast is the Reaction of Hydrated Electrons with Graphene Oxide in Aqueous Dispersions? A. Kahnt, R. Flyunt, C. Laube, W. Knolle, S. Eigler, R. Hermann, S. Naumov, B. Abel, Nanoscale, 2015, 7, 19432.
  7. Synthesis, Aromaticity and Photophysical Behaviour of Ferrocene- and Ruthenocene-Appended Semisynthetic Chlorin Derivatives, T. Nikkonen, M. Moreno Oliva, S. Taubert, M. Melchionna, A. Kahnt, J. Helaja, Chem. Eur. J. 2015, 21, 12755.
  8. Hopping versus Tunneling Mechanism for Long-Range Electron Transfer in Porphyrin Oligomer Bridged Donor-Acceptor Systems, M. Gilbert Gatty, A. Kahnt, L. J. Esdaile, M. Hutin, H. L. Anderson, B. Albinsson, J. Phys. Chem. B, 2015, 119, 7598.
  9. Enhanced performance of dye-sensitized solar cells based on TiO2 nanotube membranes using an optimized annealing profile, F. Mohammadpour, M. Moradi, K. Lee, G. Cha, S. So, A. Kahnt, D. M. Guldi, M. Altomare, P. Schmuki, Chem. Commun. 2015, 51, 1631.
  10. Zinc Porphyrin-Re(I) Bipyridyl-Fullerene Triad: Synthesis, Characterization, and Kinetics of the Stepwise Electron-Transfer Processes Initiated by Visible Excitation, P. Cavigli, T. Da Ros, A. Kahnt, M. Gamberoni, M. T. Indelli, E. Iengo, Inorg. Chem. 2015, 54, 280.
  11. Photoinduced Charge Transfer in a Conformational Switching Chlorin Dimer–Azafulleroid in Polar and Nonpolar Media, T. Nikkonen, M. Moreno Oliva, A. Kahnt, M. Muuronen, J. Helaja, D. M. Guldi, Chem. Eur. J. 2015, 21, 590.
  12. Efficient Route to High-Quality Graphene Materials: Kinetically Controlled Electron Beam Induced Reduction of Graphene Oxide in Aqueous Dispersion, R. Flyunt, W. Knolle, A. Kahnt, S. Eigler, A. Lotnyk, T. Häupl, A. Prager, D. M. Guldi and B. Abel, Am. J. Nano Res. Appl., 2014, 2, 9.
  13. Chemical Modification of a Tetrapyrrole-Type Photosensitizer: Tuning Application and Photochemical Action beyond the Singlet Oxygen Channel, Y. M. Riyad, S. Naumov, S. Schastak, J. Griebel, A. Kahnt, T. Haeupl, J. Neuhaus, B. Abel, R. Hermann, J. Phys. B 2014, 118, 11646.
  14. Kinetic Studies of the Reduction of [Co(dmgH)2(py)(Cl)] Revisited: Mechanisms, Products and Implications, A. Kahnt, K. Peuntinger, C. Dammann, T. Drewello, R. Hermann, S. Naumov, B. Abel, D. M. Guldi, J. Phys. Chem. A 2014, 118, 4382-4391.
  15. Mechanistic Aspects of the Radiation-Chemical Reduction of Graphene Oxide to Graphene-Like Materials, R. Flyunt, W. Knolle, A. Kahnt, A. Prager, A. Lotnyk, J. Malig, D. Guldi, B. Abel, Int. J. Radiat. Biol. 2014, 90, 486.
  16. Surface Functionalization and Electronic Interactions of ZnO Nanorods with a Porphyrin Derivative, M. Klaumünzer, A. Kahnt, A. Burger, M. Mačković, C. Münzel, R. Srikantharajah, E. Spiecker, A. Hirsch, W. Peukert, D. M. Guldi, ACS Appl. Mater. Interfaces 2014, 6, 6724.
  17. Synthesis and Photophysics of Coaxial Threaded Molecular Wires: Polyrotaxanes with Triarylamine Jackets, G. Sforazzini, A. Kahnt, M. Wykes, J. K. Sprafke, S. Brovelli, D. Montarnal, F. Meinardi, F. Cacialli, D. Beljonne, B. Albinsson, H. L. Anderson, J. Phys. Chem. C 2014, 118, 4553.
  18. Supramolecular assembly of multicomponent photoactive systems via cooperatively coupled equilibria, M. García-Iglesias, K. Peuntinger, A. Kahnt, J. Krausmann, P. Vázquez, D. González-Rodríguez, D. M. Guldi, T. Torres, J. Am. Chem. Soc. 2013, 135, 19311.
  19. Protonation-induced changes in the photophysical properties of a phthalocyanine and a covalently-linked, phthalocyanine-C60 fullerene dyad, G. Bottari, A. Kahnt, D. M. Guldi, T. Torres, ECS Journal of Solid State Science and Technology 2013, 2 (10) M3145.
  20. A corrole-azafullerene dyad: synthesis, characterization, electronic interactions and photoinduced charge separation, G. Rotas, G. Charalambidis, L. Glaetzl, D. T. Gryko, A. Kahnt, A. G. Coutsolelos, N. Tagmatarchis, Chem Commun. 2013, 49, 9128.
  21. Carbon Nanohorns as Integrative Materials for Efficient Dye-Sensitized Solar Cells, R. D. Costa, S. Feihl, A. Kahnt, S. Gambhir, D. L. Officer, G. G. Wallace, M. I. Lucio, M. A. Herrero, E. Vázquez, Z. Syrgiannis, M. Prato, D. M. Guldi, Adv.Mater. 2013, 25, 6513.
  22. Excited state properties of anodic TiO2 nanotubes, A. Kahnt, C. Oelsner, F. Werner, D. M. Guldi, S. P. Albu, R. Kirchgeorg, K. Lee, P. Schmuki, Appl. Phys. Lett. 2013, 102, 233109.
  23. Photoinduced Charge Transfer in Porphyrin-Cobaloxime and Corrole-Cobaloxime Hybrids, K. Peuntinger, T. Lazarides, D. Dafnomili, G. Charalambidis, G. Landrou, A. Kahnt, R. P. Sabatini, D. W. McCamant, D. T. Gryko, A. G. Coutsolelos, D. M. Guldi, J. Phys. Chem. C 2013, 117, 1647.
  24. Charge separation in a covalently-linked phthalocyanine-oligo(p-phenylenevinylene)-C60 system. Influence of the solvent polarity, J.-J. Cid, A. Kahnt, P. Vazquez, D. M. Guldi, T. Torres, J. Inorg. Biochem. 2012, 108, 216.
  25. Temperature Dependence of Charge Separation and Recombination in Porphyrin Oligomer-Fullerene Donor-Acceptor Systems, A. Kahnt, J. Karnbratt, L. J. Esdaile, M. Hutin, K. Sawada, H. L. Anderson, B. Albinsson, J. Am. Chem. Soc. 2011, 133, 9863.
  26. Molecular Implementation of Sequential and Reversible Logic Through Photochromic Energy Transfer Switching, P. Remon, M. Hammarson, S. Li, A. Kahnt, U. Pischel, J. Andreasson, Chem. Eur. J. 2011, 17, 6492.
  27. An Electrochemical and Photophysical Study of a Covalently Linked Inorganic-Organic Dyad, A. Kahnt, L.-P. Heiniger, S.-X. Liu, X. Tu, Z. Zheng, A. Hauser, S. Decurtins, D. M. Guldi, ChemPhysChem 2010, 11, 651.
  28. Reaction of water-soluble fullerenes with O2•– and other reactive radical species, A. Kahnt, D. M. Guldi, M. Brettreich, U. Hartnagel, A. Hirsch, J. Mater. Chem. 2010, 20, 83.
  29. Controlling charge transfer in fullerene/phthalocyanine electron donor-acceptor conjugates/hybrids, W. Seitz, A. Kahnt, D. M Guldi, T Torres, J. Porphyrins Phthalocyanines 2009, 13, 1034.
  30. Synthesis and photoinduced electron-transfer properties of phthalocyanine-[60] fullerene conjugates, M. Quintiliani, A. Kahnt, T. Woeffle, W. Hieringer, P. Vazquez, A. Goerling, D. M. Guldi, T. Torres, Chem. Eur. J. 2008, 14, 3765.
  31. A bis(C60)-bis(phthalocyanine) nanoconjugate: synthesis and photoinduced charge transfer, A. Kahnt, M. Quintiliani, P. Vazquez, D. M. Guldi, T. Torres, ChemSusChem 2008, 1, 97.
  32. Implementing a tripodal relay station in a phthalocyanine-[60]fullerene conjugate, M. Quintiliani, A. Kahnt, P. Vazquez, D. M. Guldi, T. Torres, J. Mater. Chem. 2008, 18, 1542.
  33. [2.2]Paracyclophane: a pseudoconjugated spacer for long-lived electron transfer in phthalocyanine-C60 dyads, A. Kahnt, D. M. Guldi, A. de la Escosura, M. V. Martinez-Diaz, T. Torres, J. Mater. Chem. 2008, 18, 77.
  34. Photoinduced Energy Transfer Processes within Dyads of Metallophthalocyanines Compactly Fused to a Ruthenium(II) Polypyridine Chromophore, M. Haas, S.-X. Liu, A. Kahnt, C. Leiggener, D. M. Guldi, A. Hauser, S. Decurtins, J. Org. Chem. 2007, 72, 7533.
  35. Photoinduced Electron Transfer in a New Bis(C60)-Phthalocyanine Triad, A. Gouloumis, A. de la Escosura, P. Vazquez, T. Torres, A. Kahnt, D. M. Guldi, H. Neugebauer, C. Winder, M. Drees, N. S. Sariciftci, Org. Lett. 2006, 8, 5187.