Search Results - "Höfer, Ulrich"

Ultrafast Exciton Dynamics and Charge Transfer at PTCDA/Metal Interfaces by Stallberg, Klaus, Namgalies, Andreas, Chatterjee, Sangam, Höfer, Ulrich

“…The functionality of organic electronic devices is governed by the dynamics of charge carriers and excited states in organic semiconductors. In particular, the…”
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Momentum-Resolved Observation of Exciton Formation Dynamics in Monolayer WS2 by Wallauer, Robert, Perea-Causin, Raul, Münster, Lasse, Zajusch, Sarah, Brem, Samuel, Güdde, Jens, Tanimura, Katsumi, Lin, Kai-Qiang, Huber, Rupert, Malic, Ermin, Höfer, Ulrich

“…The dynamics of momentum-dark exciton formation in transition metal dichalcogenides is difficult to measure experimentally, as many momentum-indirect exciton…”
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Ultrafast Charge-Transfer Dynamics in Twisted MoS2/WSe2 Heterostructures by Zimmermann, Jonas E., Axt, Marleen, Mooshammer, Fabian, Nagler, Philipp, Schüller, Christian, Korn, Tobias, Höfer, Ulrich, Mette, Gerson

“…Two-dimensional transition metal dichalcogenides offer a fascinating platform for creating van der Waals heterojunctions with exciting physical properties…”
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Chemoselective Adsorption of Allyl Ethers on Si(001): How the Interaction between Two Functional Groups Controls the Reactivity and Final Products of a Surface Reaction by Glaser, Timo, Adamkiewicz, Alexa, Heep, Julian, Höfer, Ulrich, Dürr, Michael

“…Selective adsorption of multifunctional molecules is rarely observed when the different functional groups react via nonactivated reaction channels. Although…”
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Tip-Induced Dissociation of Diethyl Ether on Si(001)Influence of Molecular Structure on Final Reaction Products by Adamkiewicz, Alexa, Bohamud, Tamam, Reutzel, Marcel, Höfer, Ulrich, Dürr, Michael

“…Scanning tunneling microscopy gives access to well-controlled manipulation of surface adsorbates by means of activating reaction pathways beyond thermal…”
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Coherent and Incoherent Excitation Pathways in Time-Resolved Photoemission Orbital Tomography of CuPc/Cu(001)-2O by Adamkiewicz, Alexa, Raths, Miriam, Stettner, Monja, Theilen, Marcel, Münster, Lasse, Wenzel, Sabine, Hutter, Mark, Soubatch, Serguei, Kumpf, Christian, Bocquet, François C., Wallauer, Robert, Tautz, F. Stefan, Höfer, Ulrich

“…Time-resolved photoemission orbital tomography (tr-POT) offers unique possibilities for tracing molecular electron dynamics. The recorded pump-induced changes…”
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Model potential for the description of metal/organic interface states by Armbrust, Nico, Schiller, Frederik, Güdde, Jens, Höfer, Ulrich

“…We present an analytical one-dimensional model potential for the description of electronic interface states that form at the interface between a metal surface…”
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Electric-Field-Induced Depolarization of Si–C Bond Leads to a Strongly Reduced Barrier for Alkyl-Hopping on Si(001) by Bohamud, Tamam, Reutzel, Marcel, Adamkiewicz, Alexa, Höfer, Ulrich, Dürr, Michael

“…Tip-induced hopping of the ethyl fragment (−C2H5) of diethyl ether molecules reacted on Si(001) was shown to be a field-driven process. Although the hopping…”
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Dissociative Adsorption of Diethyl Ether on Si(001) Studied by Means of Scanning Tunneling Microscopy and Photoelectron Spectroscopy by Reutzel, Marcel, Mette, Gerson, Stromberger, Peter, Koert, Ulrich, Dürr, Michael, Höfer, Ulrich

“…The adsorption of diethyl ether (Et2O) on Si(001) was studied by means of scanning tunneling microscopy (STM) and photoelectron spectroscopy. Et2O reacts on…”
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Terahertz radiation from propagating acoustic phonons based on deformation potential coupling by Park, Sang-Hyuk, Lee, Sehyuk, Ishioka, Kunie, Stanton, Christopher J., Kee, Chul-Sik, Beyer, Andreas, Höfer, Ulrich, Stolz, Wolfgang, Volz, Kerstin, Jho, Young-Dahl

“…We report on new THz electromagnetic emission mechanism from deformational coupling of acoustic (AC) phonons with electrons in the propagation medium of…”
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Dynamically coupled plasmon-phonon modes in GaP: An indirect-gap polar semiconductor by Ishioka, Kunie, Brixius, Kristina, Höfer, Ulrich, Rustagi, Avinash, Thatcher, Evan M., Stanton, Christopher J., Petek, Hrvoje

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Adsorption of Methanol on Si(001): Reaction Channels and Energetics by Länger, Christian, Bohamud, Tamam, Heep, Julian, Glaser, Timo, Reutzel, Marcel, Höfer, Ulrich, Dürr, Michael

“…Adsorption of methanol on Si(001) was studied by means of X-ray photoelectron spectroscopy (XPS), molecular beam techniques, and scanning tunneling microscopy…”
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Formation of an Organic/Metal Interface State from a Shockley Resonance by Galbraith, Martin C. E, Marks, Manuel, Tonner, Ralf, Höfer, Ulrich

“…The emergence of an organic/metal interface state is studied for the interface between 3,4,9,10-perylene-tetracarboxylic acid dianhydride (PTCDA) and Ag(100)…”
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Chemoselective Reactivity of Bifunctional Cyclooctynes on Si(001) by Reutzel, Marcel, Münster, Niels, Lipponer, Marcus A, Länger, Christian, Höfer, Ulrich, Koert, Ulrich, Dürr, Michael

“…Controlled organic functionalization of silicon surfaces as an integral part of semiconductor technology offers new perspectives for a wide range of…”
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Binding Energy and Dissociation Barrier: Experimental Determination of the Key Parameters of the Potential Energy Curve of Diethyl Ether on Si(001) by Reutzel, Marcel, Lipponer, Marcus, Dürr, Michael, Höfer, Ulrich

“…The key parameters of the potential energy curve of organic molecules on semiconductor surfaces, binding energy of the intermediate state and dissociation…”
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Ultrafast surface Dirac fermion dynamics of Sb2Te3-based topological insulators by Sumida, Kazuki, Ishida, Yukiaki, Güdde, Jens, Höfer, Ulrich, Shin, Shik, Kimura, Akio

“…Topological insulators (TIs) characterized by gapless and spin-polarized conical band dispersion on their surfaces have been extensively studied over the last…”
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Complex Surface Chemistry of an Otherwise Inert Solvent Molecule: Tetrahydrofuran on Si(001) by Mette, Gerson, Reutzel, Marcel, Bartholomäus, Ruben, Laref, Slimane, Tonner, Ralf, Dürr, Michael, Koert, Ulrich, Höfer, Ulrich

“…The reaction of tetrahydrofuran (THF), an otherwise inert solvent molecule, on Si(001) was experimentally studied in ultra‐high vacuum. Using scanning…”
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Sub-picosecond acoustic pulses at buried GaP/Si interfaces by Ishioka, Kunie, Rustagi, Avinash, Beyer, Andreas, Stolz, Wolfgang, Volz, Kerstin, Höfer, Ulrich, Petek, Hrvoje, Stanton, Christopher J.

“…We report on the optical generation and detection of ultrashort acoustic pulses that propagate in three-dimensional semiconductor crystals. Photoexcitation of…”
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Surface Chemistry of tert-Butylphosphine (TBP) on Si(001) in the Nucleation Phase of Thin-Film Growth by Stegmüller, Andreas, Werner, Katharina, Reutzel, Marcel, Beyer, Andreas, Rosenow, Phil, Höfer, Ulrich, Stolz, Wolfgang, Volz, Kerstin, Dürr, Michael, Tonner, Ralf

“…We combine density functional theory calculations and scanning tunneling microscopy investigations to identify the relevant chemical species and reactions in…”
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Structural Evolution of Perfluoro-Pentacene Films on Ag(111): Transition from 2D to 3D Growth by Götzen, Jan, Schwalb, Christian H, Schmidt, Christian, Mette, Gerson, Marks, Manuel, Höfer, Ulrich, Witte, Gregor

“…The structural evolution and thermal stability of perfluoro-pentacene (PF-PEN) thin films on Ag(111) have been studied by means of low-temperature scanning…”
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