Selected Publications

Publictions by Year

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Chemical modifications at interfaces between the organic semiconductors pentacene and Buckminster-fullerene.

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Reaction dynamics control the chemoselective adsorption of bifunctional cyclooctynes on silicon.

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Electron-vibron coupling at the interface of the organic semiconductor NTCDA and the Ag(111) surface.

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An electron and a hole collide in a tungsten diselinide crystal releasing energy which discharges in high-energy photons.

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Subcycle observation of lightwave-driven Dirac currents in a topological surface band. The electric field of light accelerates electrons at optical clock rates.

Highlights

Y. Radiev, T. Wollandt, H. Klauk, G. Witte Unveiling the Effects of Hydroxyl-Induced Trap States on the Charge Transport in p- and n-Channel Organic Field-Effect Transistors through Variable-Temperature Characterization Adv. Mater. (2025) 2505631 DOI:10.1002/adma.202505631 See also SFB-News.
G. Mette, K. Ishioka, S. Youngkin, W. Stolz, K. Volz, U. Höfer Interface-Specific Excitation of Coherent Phonons at the Buried GaP/Si(001) Heterointerface Adv. Mater. Interfaces 12 (2025) 2400573 DOI:10.1002/admi.202400573 See also SFB-News.
T. Venanzi, M. Cuccu, R. Perea-Causin, X. Sun, S. Brem, D. Erkensten, T. Taniguchi, K. Watanabe, Ermin Malic, M. Helm, S. Winnerl, A. Chernikov Ultrafast switching of trions in 2D materials by terahertz photons Nat. Photon. 18 (2024) 1344 DOI:10.1038/s41566-024-01512-0 See also SFB-News.
O. Maßmeyer, R. Günkel, J. Glowatzki, P. Klement, B. Ojaghi Dogahe, S.R. Kachel, F. Gruber, M. Müller, M. Fey, J. Schörmann, J. Belz, A. Beyer, J.M. Gottfried, S. Chatterjee, K. Volz Synthesis of 2D Gallium Sulfide with Ultraviolet Emission by MOCVD Small 20 (2024) 2402155 DOI:10.1002/smll.202402155 See also SFB-News.
J.J.P. Thompson, M. Dyksik, P. Peksa, K. Posmyk, A. Joki, R. Perea-Causin, P. Erhart, M. Baranowski, M. Antonietta Loi, P. Plochocka, E. Malic Phonon-Bottleneck Enhanced Exciton Emission in 2D Perovskites Adv. Energy Mater. 14 (2024) 2304343 DOI:10.1002/aenm.202304343 See also the cover of the issue.
J.P. Bange, D. Schmitt, W. Bennecke, G. Meneghini, A.A. Al Mutairi, K. Watanabe, T. Taniguchi, D. Steil, S. Steil, R.T. Weitz, G.S.M. Jansen, S. Hofmann, S. Brem, E. Malic, M. Reutzel, S. Mathias Probing electron-hole Coulomb correlations in the exciton landscape of a twisted semiconductor heterostructure Sci. Adv. 10 (2024) eadi1323 DOI:10.1126/sciadv.adi1323 See also SFB-News.
D. Günder, M. Axt, G. Witte Heteroepitaxy in Organic/TMD Hybrids and Challenge to Achieve it for TMD Monolayers: The Case of Pentacene on WS₂ and WSe₂ ACS Applied Materials & Interfaces 16 (2024) 1911 DOI:10.1021/acsami.3c15829 See also SFB-News.
T. Glaser, J.A. Peters, D. Scharf, U. Koert, M. Dürr Layer-by-Layer Deposition of Organic Molecules Controlled by Selective Click Reactions Chem. Mater. 36 (2024) 561 DOI:10.1021/acs.chemmater.3c02707 See also SFB-News.
J. Möbs, P. Klement, G. Stuhrmann, L. Gümbel, M. Müller, S. Chatterjee, J. Heine Enhanced Circular Dichroism and Polarized Emission in an Achiral, Low Band Gap Bismuth Iodide Perovskite Derivative J. Am. Chem. Soc. 145 (2023) 23478 DOI:10.1021/jacs.3c06141 See also SFB-News and the cover of the issue.
V. Chejarla, S. Ahmed, J. Belz, J. Scheunert, A. Beyer, K. Volz Measuring spatially-resolved potential drops at semiconductor hetero-interfaces using 4D-STEM Small Methods 7 (2023) 2300453 DOI:10.1002/smtd.202300453 See also SFB-News.
R. Rosati, I. Paradisanos, L. Huang, Z. Gan, A. George, K. Watanabe, T. Taniguchi, L. Lombez, P. Renucci, A. Turchanin, B. Urbaszek, E. Malic Interface engineering of charge-transfer excitons in 2D lateral heterostructures Nat Commun 14 (2023) 2438 DOI:10.1038/s41467-023-37889-9 See also SFB-News.
F. Tagarelli, E. Lopriore, D. Erkensten, R. Perea-Causín, S. Brem, J. Hagel, Z. Sun, G. Pasquale, K. Watanabe, T. Taniguchi, E. Malic, A. Kis Electrical control of hybrid exciton transport in a van der Waals heterostructure Nat. Photon. 17 (2023) 615 DOI:10.1038/s41566-023-01198-w See also SFB-News.
S. Ito, M. Schüler, M. Meierhofer, S. Schlauderer, J. Freudenstein, J. Reimann, D. Afanasiev, K.A. Kokh, O.E. Tereshchenko, J. Güdde, M.A. Sentef, U. Höfer, R. Huber Build-up and dephasing of Floquet–Bloch bands on subcycle timescales Nature 616 (2023) 696 DOI:10.1038/s41586-023-05850-x See also SFB-News.
M. Dreher, P.M. Dombrowski, M.W. Tripp, N. Münster, U. Koert, G. Witte Shape control in 2D molecular nanosheets by tuning anisotropic intermolecular interactions and assembly kinetics Nat. Comm. 14 (2023) 1554 DOI:10.1038/s41467-023-37203-7 See also SFB-News.
D. Bischof, Y. Radiev, M.W. Tripp, P.E. Hofmann, T. Geiger, H.F. Bettinger, U. Koert, G. Witte Chemical Doping by Fluorination and Its Impact on All Energy Levels of π-Conjugated Systems J. Phys. Chem. Lett. 14 (2023) 2551 DOI:10.1021/acs.jpclett.3c00287 See also SFB-News.
D. Günder, V. Diez-Cabanes, A. Huttner, T. Breuer, V. Lemaur, J. Cornil, G. Witte F-Center-Mediated Growth of Patterned Organic Semiconductor Films on Alkali Halides ACS Appl. Mater. Interfaces 14 (2022) 46086 DOI:10.1021/acsami.2c13934 See also SFB-News.
D. Schmitt, J.P. Bange, W. Bennecke, A.A. Al Mutairi, G. Meneghini, K. Watanabe, T. Taniguchi, D. Steil, D.R. Luke, R.T. Weitz, S. Steil, G.S.M. Jansen, S. Brem, E. Malic, S. Hofmann, M. Reutzel, S. Mathias Formation of moiré interlayer excitons in space and time Nature 608 (2022) 499 DOI:10.1038/s41586-022-04977-7 See also SFB-News.
B.P. Klein, A. Ihle, S.R. Kachel, L. Ruppenthal, S.J. Hall, L. Sattler, S.M. Weber, J. Herritsch, A. Jaegermann, D. Ebeling, R.J. Maurer, G. Hilt, R. Tonner-Zech, A. Schirmeisen, J.M. Gottfried Topological Stone–Wales Defects Enhance Bonding and Electronic Coupling at the Graphene/Metal Interface ACS Nano 16 (2022) 11979 DOI:10.1021/acsnano.2c01952 See also SFB-News.
M. Dreher, D. Cornil, M. W. Tripp, U. Koert, J. Cornil, G. Witte On the Role of Collective Electrostatic Effects in Electronic Level Pinning and Work Function Changes by Molecular Adlayers: The Case of Partially Fluorinated DNTTs Adsorbed Flat-Lying on Various Metals and Hetero-Structures Adv. Mater. Interfaces 9 (2022) 220361 DOI:10.1002/admi.202200361 See also SFB-News.
S. Brem, E. Malic Terahertz Fingerprint of Monolayer Wigner Crystals Nano Lett. 22 (2022) 1311 DOI:10.1021/acs.nanolett.1c04620 See also SFB-News.
R. Rosati, R. Schmidt, S. Brem, R. Perea-Causín, I. Niehues, J. Kern, J.A. Preuß, R. Schneider, S.M. de Vasconcellos, R. Bratschitsch, E. Malic Dark exciton anti-funneling in atomically thin semiconductors Nat. Commun. 12 (2021) 7221 DOI:10.1038/s41467-021-27425-y See also SFB-News.
D. Günder, A.M. Valencia, M. Guerrini, T. Breuer, C. Cocchi, G. Witte Polarization Resolved Optical Excitation of Charge-Transfer Excitons in PEN:PFP Cocrystalline Films: Limits of Nonperiodic Modeling J. Phys. Chem. Lett. 12 (2021) 9899 DOI:10.1021/acs.jpclett.1c02761 See also SFB-News.
J.E. Zimmermann, M. Axt, F. Mooshammer, P. Nagler, C. Schüller, T. Korn, U. Höfer, G. Mette Ultrafast Charge-Transfer Dynamics in Twisted MoS₂/WSe₂ Heterostructures ACS Nano 15 (2021) 14725 DOI:10.1021/acsnano.1c04549 See also SFB-News.
F. Widdascheck, D. Bischof, G. Witte Engineering of Printable and Air-Stable Silver Electrodes with High Work Function using Contact Primer Layer: From Organometallic Interphases to Sharp Interfaces Adv. Funct. Mater. 31 (2021) DOI:10.1002/adfm.202106687 See also SFB-News.
R. Wallauer, R. Perea-Causin, L. Münster, S. Zajusch, S. Brem, J. Güdde, K. Tanimura, K.-Q. Lin, R. Huber, E. Malic, U. Höfer Momentum-resolved observation of exciton formation dynamics in monolayer WS₂ Nano Lett. 21 (2021) 5867 DOI:10.1021/acs.nanolett.1c01839 See also SFB-News.
Q.T. Fan, L.H. Yan, M.W. Tripp, O. Krejči, S. Dimosthenous, S.R. Kachel, M.Y. Chen, A.S. Foster, U. Koert, P. Liljeroth, J.M. Gottfried Biphenylene Network: A Nonbenzenoid Carbon Allotrope Science 372 (2021) 852 DOI:10.1126/science.abg4509 See full article.
C.P. Schmid, L. Weigl, P. Grössing, V. Junk, C. Gorini, S. Schlauderer, S. Ito, M. Meierhofer, N. Hofmann, D. Afanasiev, J. Crewse, K.A. Kokh, O.E. Tereshchenko, J. Güdde, F. Evers, J. Wilhelm, K. Richter, U. Höfer, R. Huber Tuneable non-integer high-harmonic generation in a topological insulator Nature (2021) DOI:10.1038/s41586-021-03466-7 See full article.
P. Klement, N. Dehnhardt, C.‐D. Dong, F. Dobener, S. Bayliff, J. Winkler, D.M. Hofmann, P.J. Klar, S. Schumacher, S. Chatterjee, J. Heine Atomically Thin Sheets of Lead‐Free 1D Hybrid Perovskites Feature Tunable White‐Light Emission from Self‐Trapped Excitons Adv. Mater. 33 (2021) 2100518 DOI:10.1002/adma.202100518 See also SFB-News.
P. Jakob, S. Thussing Vibrational Frequency used as Internal Clock Reference to access Molecule — Metal Charge Transfer Times Phys. Rev. Lett. 126 (2021) 116801 DOI:10.1103/PhysRevLett.126.116801 See full article.
R. Wallauer, M. Raths, K. Stallberg, L. Münster, D. Brandstetter, X. Yang, J. Güdde, P. Puschnig, S. Soubatch, C. Kumpf, F.C. Bocquet, F.S. Tautz, U. Höfer Tracing orbital images on ultrafast time scales Science 371 (2021) 1056 DOI:10.1126/science.abf3286 See full article.
A. Beyer, M.S. Munde, S. Firoozabadi, D. Heimes, T. Grieb, A. Rosenauer, K. Müller-Caspary, K. Volz Quantitative Characterization of Nanometer-Scale Electric Fields via Momentum-Resolved STEM Nano Lett. (2021) DOI:10.1021/acs.nanolett.0c04544 See full article.
Y. Radiev, F. Widdascheck, M. Göbel, A.A. Hauke, G. Witte Prepare with care: Low contact resistance of pentacene Field-Effect transistors with clean and oxidized gold electrodes Org. Electron. 89 (2021) 106030 DOI:10.1016/j.orgel.2020.106030 See full article.
J.E. Zimmermann, Y.D. Kim, J.C. Hone, U. Höfer, G. Mette Directional ultrafast charge transfer in a WSe₂/MoSe₂ heterostructure selectively probed by time-resolved SHG imaging microscopy Nanoscale Horizons 5 (2020) 1603 DOI: 10.1039/d0nh00396d See full article.
M. Dreher, D. Günder, S. Zörb, G. Witte Van der Waals Bound Organic Semiconductor/2D-Material Hybrid Heterosystems: Intrinsic Epitaxial Alignment of Perfluoropentacene Films on Transition Metal Dichalcogenides Chem. Mater. 32 (2020) 9034 DOI:10.1021/acs.chemmater.0c03482 See full article.
P. E. Hofmann, M. W. Tripp, D. Bischof, Y. Grell, A. L. C. Schiller, T. Breuer, S. I. Ivlev, G. Witte, U. Koert Unilaterally Fluorinated Acenes: Synthesis and Solid State Properties Angew. Chem. Int. Ed. 59 (2020) 16501 DOI:10.1002/anie.202006489 See full article.
Q. Fan, J.-N. Luy, M. Liebold, K. Greulich, M. Zugermeier, J. Sundermeyer, R. Tonner, J.M. Gottfried Template-controlled on-surface synthesis of a lanthanide supernaphthalocyanine and its open-chain polycyanine counterpart Nature Commun. 10 (2019) 5049 DOI:10.1038/s41467-019-13030-7 See full article.
E. Dornsiepen, F. Pieck, R. Tonner, S. Dehnen [{(PhSn)₃SnS₆}{(MCp)₃S₄}] (M = W, Mo): minimal molecular models of the covalent attachment of metal chalcogenide clusters on doped transition metal dichalcogenide layers J. Am. Chem. Soc. 141 41 (2019) 16494-16500 DOI:10.1021/jacs.9b09209 See full article.
C. Wagner, M. F. B. Green, M. Maiworm, P. Leinen, T. Esat, N. Ferri, N.Friedrich, R. Findeisen, A. Tkatchenko, R. Temirov, F. S. Tautz Quantitative imaging of electric surface potentials with single-atom sensitivity Nature Materials 18 (2019) 853-859 DOI:10.1038/s41563-019-0382-8 See full article.
F. Widdascheck, A.A. Hauke, G. Witte A solvent‐free solution: vacuum‐deposited organic monolayers modify work functions of noble metal electrodes Adv. Funct. Mater. 29 17 (2019) 180385 DOI:10.1002/adfm.201808385 See full article.
B.P. Klein, N.J. van der Heijden, S.R. Kachel, M. Franke, C.K. Krug, K.K. Greulich, L. Ruppenthal, P. Müller, P. Rosenow, S. Parhizkar, F.C. Bocquet, M. Schmid, W. Hieringer, R.J. Maurer, R. Tonner, C. Kumpf, I. Swart, J.M. Gottfried Molecular topology and surface chemical bond: alternant versus nonalternant aromatic systems as functional structural elements Phys. Rev. X 9 1 (2019) 011030 DOI:10.1103/PhysRevX.9.011030 See full article.
G. Mette, A. Adamkiewicz, M. Reutzel, U. Koert, M. Dürr, U. Höfer Controlling an S_N2 reaction by electronic and vibrational excitation ‐ tip‐induced ether cleavage on Si(001) Angew. Chemie Int. Ed. 58 11 (2019) 3417-3420 DOI:10.1002/anie.201806777 See full article.
A. Sabitova, R. Temirov, F. S. Tautz Lateral scattering potential of the PTCDA/Ag(111) interface state Phys. Rev. B 98 20 (2018) 205429 DOI:10.1103/PhysRevB.98.205429 See full article.
J. Reimann, S. Schlauderer, C.P. Schmid, F. Langer, S. Baierl, K.A. Kokh, O.E. Tereshchenko, A. Kimura, C. Lange, J. Güdde, U. Höfer, R. Huber Subcycle observation of lightwave-driven Dirac currents in a topological surface band Nature 562 (2018) 396-400 DOI:10.1038/s41586-018-0544-x See full article.
M. Stein, C. Lammers, M.J. Drexler, C. Fuchs, W. Stolz, M. Koch Enhanced absorption by linewidth narrowing in optically excited type-II semiconductor heterostructures Phys. Rev. Lett. 121 1 (2018) 017401 DOI:10.1103/PhysRevLett.121.017401 See full article.
F. Langer, C.P. Schmid, S. Schlauderer, M. Gmitra, J. Fabian, P. Nagler, C. Schüller, T. Korn, P.G. Hawkins, J.T. Steiner, U. Huttner, S.W. Koch, M. Kira, R. Huber Lightwave valleytronics in a monolayer of tungsten diselenide Nature 557 (2018) 76-80 DOI:10.1038/s41586-018-0013-6 See full article.
A. Rinn, T. Breuer, J. Wiegand, M. Beck, J. Hübner, R. C. Döring, M. Oestreich, W. Heimbrodt, G. Witte, S. Chatterjee Interfacial molecular packing determines exciton dynamics in molecular heterostructures: the case of pentacene − perfluoropentacene ACS Appl. Mater. Interfaces 9 48 (2017) 42020-42028 DOI:10.1021/acsami.7b11118 See full article.
L. Pecher, S. Laref, M. Raupach, R. Tonner Ethers on Si(001): A prime example for the common ground between surface science and molecular organic chemistry Angew. Chem. Int. Ed. 56 (2017) 15150-15154 DOI:10.1002/anie.201707428 See full article.
N. Armbrust, F. Schiller, J. Güdde, U. Höfer Model potential for the description of metal/organic interface states Sci. Rep. 7 (2017) 46561 DOI:10.1038/srep46561 See full article.
R. Wallauer, N. Armbrust, J. Reimann, J. Güdde, U. Höfer Intervalley scattering in MoS₂ imaged by two-photon photoemission with a high-harmonic probe Appl. Phys. Lett. 109 (2016) 162102, DOI:10.1063/1.4965839 See full article.
M. Reutzel, N. Münster, M. A. Lipponer, C. Länger, U. Höfer, U. Koert, M. Dürr Chemoselective reactivity of bifunctional cyclooctynes on Si(001) J. Phys. Chem. C 120 46 (2016) 26284-26289 DOI:10.1021/acs.jpcc.6b07501 See full article.
A. Beyer, A. Stegmüller, J. O. Oelerich, K. Jandieri, K. Werner, G. Mette, W. Stolz, S. D. Baranovskii, R. Tonner, K. Volz Pyramidal structure formation at the interface between III/V semiconductors and silicon Chem. Mater. 28 10 (2016) 3265-3275 DOI:10.1021/acs.chemmater.5b04896 See full article.
K. Kuroda, J. Reimann, J. Güdde, U. Höfer Generation of transient photocurrents in the topological surface state of Sb₂Te₃ by direct optical excitation with midinfrared pulses Phys. Rev. Lett. 116 (2016) 076801 DOI:10.1103/PhysRevLett.116.076801 See full article.
C. Möller, C. Fuchs, C. Berger, A. Ruiz Perez, M. Koch, J. Hader, J.V. Moloney, S.W. Koch, W. Stolz Type-II vertical-external-cavity surface-emitting laser with Watt level output powers at 1.2 μm Appl. Phys. Lett. 108 (2016) 071102 DOI:10.1063/1.4942103 See full article.
M. Reutzel, M. Lipponer, M. Dürr, U. Höfer Binding energy and dissociation barrier: experimental determination of the key parameters of the potential energy curve of diethyl ether on Si(001) J. Phys. Chem. Lett. 6 (2015) 3971-1975 DOI:10.1021/acs.jpclett.5b01510 See full article.
J. Schwaben, N. Münster, M. Klues, T. Breuer, P. Hofmann, K. Harms, G. Witte, U. Koert Efficient syntheses of novel fluoro-substituted pentacenes and azapentacenes: molecular and solid-state properties Chem. Eur. J. 21 39 (2015) 13758-13771 DOI:10.1002/chem.201501399 See full article.
O. Vänskä, I. Tittonen, S.W. Koch, M. Kira Coherent terahertz control of vertical transport in semiconductor heterostructures Phys. Rev. Lett. 114 11 (2015) 116802 DOI:10.1103/PhysRevLett.114.116802 See full article.
K. Kolata, T. Breuer, G. Witte, S. Chatterjee Molecular Packing Determines Singlet Exciton Fission in Organic Semiconductors ACS Nano 8 7 (2014) 7377-7383, DOI:10.1021/nn502544d See full article.
M.C.E. Galbraith, M. Marks, R. Tonner, U. Höfer Formation of an organic/metal interface state from a Shockley resonance J. Phys. Chem. Lett. 5 1 (2014) 50-55, DOI:10.1021/jz402249b See full article.

JPCM Internal Interfaces

Journal of Physics: Condensed Matter
Special Issue on Internal Interfaces

SFB 1083 principal investigators Michael Gottfried and Ulrich Höfer are guest-editors of a JPCM Special Issue on Internal Interfaces with up-to-date research on the structural characterization of internal interfaces between solid materials as well as investigations into electronic coupling and dynamics of charge transfer processes at heterostructures.

Submission deadline was October 31, 2018. Check here for more details.

J.M. Gottfried and U. Höfer: Preface: fresh perspectives on internal interfaces J. Phys.: Condens. Matter 31 (2019) 500301 DOI:10.1088/1361-648X/ab3ff0

F. Edler, I. Miccoli, H. Pfnür, and C. Tegenkamp: Space charge layer effects in silicon studied by in situ surface transport J. Phys.: Condens. Matter 31 (2019) 214001 DOI:10.1088/1361-648X/ab094e

N. Zaitsev, R. Tonner, and I. Nechaev: Spin-orbit split two-dimensional states of BiTeI/Au(111) interfaces J. Phys.: Condens. Matter 31 (2019) 204001 DOI:10.1088/1361-648X/ab07fa

M.-T. Chen, O.T. Hofmann, A. Gerlach, B. Bröker, C. Bürker, J. Niederhausen, T. Hosokai, J. Zegenhagen, A. Vollmer, and R. Rieger: Energy-level alignment at strongly coupled organic–metal interfaces J. Phys.: Condens. Matter 31 (2019) 194002 DOI:10.1088/1361-648X/ab0171

D. Balle, C. Schedel, T. Chassé, and H. Peisert: Interface properties of CoPc and CoPcF₁₆ on graphene/nickel: influence of germanium intercalation J. Phys.: Condens. Matter 31 (2019) 174004 DOI:10.1088/1361-648X/ab028f

R. Tsuruta, T. hosokai, S. Yamanaka, K. Yoshida, Y. Mizuno, T. Koganezawa, and Y. Nakayama: Evolution of crystallinity at a well-defined molecular interface of epitaxial C₆₀ on the single crystal rubrene J. Phys.: Condens. Matter 31 (2019) 154001 DOI:10.1088/1361-648X/aafde0

P. Farin. M. Marquardt, W. Martyanov, J. Belz, A. Beyer, K. Volz, and A. Lenz: Three-dimensional structure of antiphase domains in GaP on Si(001) J. Phys.: Condens. Matter 31 (2019) 144001 DOI:10.1088/1361-648X/aafcfb

R. Forker, M. Gruenewald, F. Sojka, J. Peuker, P. Mueller, C. Zwick, T. Huempfner, M. Meissner, and T. Fritz: Fraternal twins: distinction between PbPc and SnPc by their switching behaviour in a scanning tunnelling microscope J. Phys.: Condens. Matter 31 (2019) 134004 DOI:10.1088/1361-648X/aafeae

S. Thussing, L. Fernandez, and P. Jakob: Thermal stability and interlayer exchange processes in heterolayers of TiOPc and PTCDA on Ag(111) J. Phys.: Condens. Matter 31 (2019) 134002 DOI:10.1088/1361-648X/aafcf8

R. Döring, N. Rosemann, A. Huttner, T. Breuer, G. Witte, and S. Chatterjee: Charge transfer processes and carrier dynamics at the pentacene – C60 interface J. Phys.: Condens. Matter 31 (2019) 134001 DOI:10.1088/1361-648X/aafea7

S.B. Srivastava, M.H. Modi, S.K. Ghosh, and S.P. Singh: Investigation of the buried planar interfaces in multi-layered inverted organic solar cells using x-ray reflectivity and impedance spectroscopy J. Phys.: Condens. Matter 31 (2019) 124003 DOI:10.1088/1361-648X/aafe38

A. Alekhin, I. Razdolski, M. Berritta, D. Bürstel, V. Temnov, D. Diesing, U. Bovensiepen, G. Woltersdorf, P.M. Oppeneer, and A. Melnikov: Magneto-optical properties of Au upon the injection of hot spin-polarized electrons across Fe/Au(001) interfaces J. Phys.: Condens. Matter 31 (2019) 124002 DOI:10.1088/1361-648X/aafd06

D. Becker-Koch, B. Rivkin, F. Paulus, H. Xiang, Y. Dong, Z. Chen, A.A. Bakulin, and Y. Vaynzof: Probing charge transfer states at organic and hybrid internal interfaces by photothermal deflection spectroscopy J. Phys.: Condens. Matter 31 (2019) 124001 DOI:10.1088/1361-648X/aafa4e

H. Sun, Q. Zheng, W. Lu, and J. Zhao: Ultrafast dynamics of solvated electrons at anatase TiO₂/H₂O interface J. Phys.: Condens. Matter 31 (2019) 114004 DOI:10.1088/1361-648X/aafcf6

J. Felter, J. Wolters, F. Bocquet, F. S. Tautz, and C. Kumpf: Momentum microscopy on the micrometer scale: Photoemission micro-tomography applied to single molecular domains J. Phys.: Condens. Matter 31 (2019) 114003 DOI:10.1088/1361-648X/aafc45

M. Rahaman, C. Wagner, A. Mukherjee, A. Lopez-Rivera, S. Gemming, and D.R.T. Zahn: Probing interlayer excitons in a vertical van der Waals p-n junction using a scanning probe microscopy technique J. Phys.: Condens. Matter 31 (2019) 114001 DOI:10.1088/1361-648X/aafd12

K. Ishioka, A. Beyer, W. Stolz, K. Volz, H. Petek, U. Höfer, and C. Stanton: Coherent optical and acoustic phonons generated at lattice-matched GaP/Si(001) heterointerfaces J. Phys.: Condens. Matter 31 (2019) 094003 DOI:10.1088/1361-648X/aaf84d

M. Schmid, S. R. Kachel, B. P. Klein, N. Bock, P. Müller, R. Riedel, N. Hampp, and J. M. Gottfried: Reactive Metal-Organic Interfaces Studied with HAXPES: Controlled formation of metalloporphyrin interphase layers during metal vapor deposition onto porphyrin films J. Phys.: Condens. Matter 31 (2019) 094002 DOI:10.1088/1361-648X/aafa2b

S. Vempati, J.-C. Deinert, L. Gierster, L. Bogner, C. Richter, N. Mutz, S. Blumstengel, A. Zykov, S. Kowarik, and Y. Garmshausen: Uncovering the (un-)occupied electronic structure of a buried hybrid interface J. Phys.: Condens. Matter 31 (2019) 094001 DOI:10.1088/1361-648X/aaf98a

M. H. Futscher, T. Schultz, J. Frisch, M. Ralaiarisoa, E. Metwalli, M. V. Nardi, P. Müller-Buschbaum, and N. Koch: Electronic properties of hybrid organic/inorganic semiconductor pn-junctions J. Phys.: Condens. Matter 31 (2019) 064002 DOI:10.1088/1361-648X/aaf310

T. Yamada, N. Kawakita, C. Okui, and T. Munakata: Hybridization of an unoccupied molecular orbital with an image potential state at a lead phthalocyanine/graphite interface J. Phys.: Condens. Matter 31 (2019) 044004 DOI:10.1088/1361-648X/aaf08e

A. Stein, D. Rolf, C. Lotze, C. Czekelius, K.J. Franke, and P. Tegeder: Electronic structure of an iron porphyrin derivative on Au(111) J. Phys.: Condens. Matter 31 (2019) 044002 DOI:10.1088/1361-648X/aaf296

T. Breuer, T. Geiger, H. Bettinger, and G. Witte: Diels-Alder adduct formation at solid interfaces between fullerenes and acenes J. Phys.: Condens. Matter 31 (2019) 034003 DOI:10.1088/1361-648X/aaf01b.

C. Länger, J. Heep, P. Nikodemiak, T. Bohamud, P. Kirsten, U. Höfer, U. Koert, and M. Dürr: Formation of Si/organic interfaces using alkyne-functionalized cyclooctynes – precursor-mediated adsorption of linear alkynes versus direct adsorption of cyclooctyne on Si(001) J. Phys.: Condens. Matter 31 (2019) 034001 DOI:10.10.1088/1361-648X/aaefc3.

L. Rost, S. Gies, M. Stein, C. Fuchs, S. Nau, W. Stolz, M. Koch, and W. Heimbrodt: Correlation of optical properties and interface morphology in type-II semiconductor heterostructures J. Phys.: Condens. Matter 31 (2019) 014001 DOI:10.1088/1361-648X/aaee93

A. Lerch, J. E. Zimmermann, A. Namgalies, K. Stallberg, and U. Höfer: Two-photon photoemission spectroscopy of unoccupied electronic states at CuPc/PTCDA/Ag(111) interfaces J. Phys.: Condens. Matter 30 (2018) 494001 DOI:10.1088/1361-648X/aaec53

T. R Kafle, B. Kattel, T. Wang, and W.-L. Chan: The relationship between the coherent size, binding energy and dissociation dynamics of charge transfer excitons at organic interfaces J. Phys.: Condens. Matter 30 (2018) 454001 DOI:10.1088/1361-648X/aae50b

K. Brixius, A. Beyer, G. Mette, J. Güdde, M. Dürr, W. Stolz, K. Volz, and U. Höfer: Second-harmonic generation as probe for structural and electronic properties of buried GaP/Si(001) interfaces J. Phys.: Condens. Matter 30 (2018) 484001 DOI:10.1088/1361-648X/aae85b

W.-D. Zabka, M. Mosberger, Z. Novotny, D. Leuenberger, G. Mette, T. Kälin, B. Probst, and J. Osterwalder: Functionalization and passivation of ultrathin alumina films of defined sub-nanometer thickness with self-assembled monolayers J. Phys.: Condens. Matter 30 (2018) 424002 DOI:10.1088/1361-648X/aaddd3

L. Meckbach, U. Huttner, L. Bannow, T. Stroucken, and S. W. Koch: Interlayer excitons in transition-metal dichalcogenide heterostructures with type-II band alignment J. Phys.: Condens. Matter 30 (2018) 354002 DOI:10.1088/1361-648X/aad984

N. L. Zaitsev, P. Jakob, and R. Tonner: Structure and vibrational properties of the PTCDA/Ag(111) interface: bilayer versus monolayer J. Phys.: Condens. Matter 30 (2018) 354001 DOI:10.1088/1361-648X/aad576

Selected prelim. work

B. E. K. Barth, E. Leuzmann, K. Harms, S. Dehnen Towards the installation of transition metal ions on donor ligand decorated tin sulfide clusters Chem. Commun. 49, 6590 (2013), DOI: 10.1039/c3cc43649g.
J. Schwaben, N. Münster, T. Breuer, M. Klues, K. Harms, G. Witte, U. Koert Synthesis and Solid-State Structures of 6,13-Bis(trifluoromethyl)- and 6,13-Dialkoxypentacene Eur. J. Org. Chem. 2013, DOI: 10.1002/ejoc.201201714.
G. Mette, M. Dürr, R. Bartholomäus, U. Koert, U. Höfer Real-space adsorption studies of cyclooctyne on Si(001) Chem. Phys. Lett. 556, 70-76 (2013), DOI: 10.1016/j.cplett.2012.11.029.
T. Breuer, M. A. Celik, P. Jakob, R. Tonner, G. Witte Vibrational Davydov Splittings and Collective Mode Polarizations in Oriented Organic Semiconductor Crystals J. Phys. Chem. C 116, 14491 (2012), DOI: 10.1021/jp309333p.
A. Beyer, J. Ohlmann, S. Liebich, H. Heim, G. Witte, W. Stolz, K. Volz GaP heteroepitaxy on Si (001): correlation of Si-surface structure, GaP growth conditions and Si – III/V-interface structure J. Appl. Phys. 111, 083534 (2012), DOI: 10.1063/1.4706573.
C. R. Braatz, G. Öhl, P. Jakob Vibrational properties of the compressed and the relaxed NTCDA monolayer on Ag(111) J. Chem. Phys. 136, 134706 (2012), DOI: 10.1063/1.3699030.
B. Ewers, N. S. Köster, R. Woscholski, M. Koch, S. Chatterjee, G. Khitrova, H. M. Gibbs, A. C. Klettke, M. Kira, S. W. Koch Ionization of coherent excitons by strong terahertz fields Phys. Rev. B 85, 075307 (2012), DOI: 10.1103/PhysRevB.85.075307.
N. Armbrust, J. Güdde, P. Jakob, U. Höfer Time-resolved two-photon photoemission of un-occupied electronic states of periodically rippled graphene on Ru(0001) Phys. Rev. Lett. 108, 056801 (2012), DOI: 10.1103/PhysRevLett.108.056801.
M. Marks, Ch. Schmidt, Ch. H. Schwalb, T. Breuer, G. Witte, U. Höfer Temperature Dependent Structural Phase Transition at the Perfluoropentacene/Ag(111) Interface J. Phys. Chem. C 116, 1904 (2012), DOI: 10.1021/jp2094577.
J. Helzel, S. Jankowski, M. El Helou, G. Witte, W. Heimbrodt Temperature dependent Op-tical Properties of Pentacene films on Zinc Oxide Appl. Phys. Lett. 99, 211102 (2011), DOI: 10.1063/1.3663863.
B. Haas, A. Beyer, W. Witte, T. Breuer, G. Witte, K. Volz Application of TEM for microstruc-tural characterization of perfluoropentacene thin films J. Appl. Phys. 110, 073514 (2011), DOI: 10.1063/1.3646549.
M. Marks, N. L. Zaitsev, B. Schmidt, C. H. Schwalb, A. Schöll, I. A. Nechaev, P. M. Echenique, E. V. Chulkov, U. Höfer Energy shift and wave function overlap of metal-organic interface states Phys. Rev. B 84, 081301 (2011), DOI: 10.1103/PhysRevB.84.081301.
K. Volz, A. Beyer, W. Witte, J. Ohlmann, I. Németh, B. Kunert, W. Stolz GaP-nucleation on exact Si (0 0 1) substrates for III/V device integration J. Cryst. Growth 315, 37 (2011), DOI: 10.1016/j.jcrysgro.2010.10.036.
J. Hader, J. V. Moloney, S. W. Koch, I. Vurgaftman, J. R. Meyer Microscopic Analysis of Mid-Infrared Type-II “W” Diode Lasers Appl. Phys. Lett. 94, 061106 (2009), DOI: 10.1063/1.3080216.
C. H. Schwalb, S. Sachs, M. Marks, A. Schöll, F. Reinert, E. Umbach, U. Höfer Electron lifetime in a Shockley-type metal-organic interface state Phys. Rev. Lett. 101, 146801 (2008), DOI: 10.1103/PhysRevLett.101.146801.
C. Schlichenmaier, H. Grüning, A. Thränhardt, P. J. Klar, B. Kunert, K. Volz, W. Stolz, W. Heimbrodt, T. Meier, S. W. Koch, J. Hader, J. V. Moloney Type I-type II transition in InGaAs-GaNAs heterostructures Appl. Phys. Lett. 86, 081903 (2005), DOI: 10.1063/1.1870132.
M. Rohleder, W. Berthold, J. Güdde, U. Höfer Time-resolved two-photon photoemission of buried interface states in Ar/Cu(100) Phys. Rev. Lett. 94, 017401 (2005), DOI: 10.1103/PhysRevLett.94.017401.

Top Highlights JPCM Prelim. Work By Year

Selected Publications

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