Search Results - "Heimel, Georg"

The Optical Signature of Charges in Conjugated Polymers by Heimel, Georg

“…Electrical charge flowing through organic semiconductors drives many of today’s mobile phone displays and television screens, suggesting an internally…”
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Molecular Electrical Doping of Organic Semiconductors: Fundamental Mechanisms and Emerging Dopant Design Rules by Salzmann, Ingo, Heimel, Georg, Oehzelt, Martin, Winkler, Stefanie, Koch, Norbert

“…Today’s information society depends on our ability to controllably dope inorganic semiconductors, such as silicon, thereby tuning their electrical properties…”
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Organic semiconductor density of states controls the energy level alignment at electrode interfaces by Oehzelt, Martin, Koch, Norbert, Heimel, Georg

“…Minimizing charge carrier injection barriers and extraction losses at interfaces between organic semiconductors and metallic electrodes is critical for…”
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Design of Organic Semiconductors from Molecular Electrostatics by Heimel, Georg, Salzmann, Ingo, Duhm, Steffen, Koch, Norbert

“…Progress in the field of organic electronics depends on the synthesis of new π-conjugated molecules to further improve the performance of, for example, organic…”
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Charge-transfer crystallites as molecular electrical dopants by Méndez, Henry, Heimel, Georg, Winkler, Stefanie, Frisch, Johannes, Opitz, Andreas, Sauer, Katrein, Wegner, Berthold, Oehzelt, Martin, Röthel, Christian, Duhm, Steffen, Többens, Daniel, Koch, Norbert, Salzmann, Ingo

“…Ground-state integer charge transfer is commonly regarded as the basic mechanism of molecular electrical doping in both, conjugated polymers and oligomers…”
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The Interface Energetics of Self-Assembled Monolayers on Metals by Heimel, Georg, Romaner, Lorenz, Zojer, Egbert, Bredas, Jean-Luc

“…Self-assembled monolayers (SAMs) of organic molecules generally modify the surface properties when covalently linked to substrates. In organic electronics,…”
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Tuning the Work Function of Polar Zinc Oxide Surfaces using Modified Phosphonic Acid Self-Assembled Monolayers by Lange, Ilja, Reiter, Sina, Pätzel, Michael, Zykov, Anton, Nefedov, Alexei, Hildebrandt, Jana, Hecht, Stefan, Kowarik, Stefan, Wöll, Christof, Heimel, Georg, Neher, Dieter

“…Zinc oxide (ZnO) is regarded as a promising alternative material for transparent conductive electrodes in optoelectronic devices. However, ZnO suffers from…”
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Band-Bending in Organic Semiconductors: the Role of Alkali-Halide Interlayers by Wang, Haibo, Amsalem, Patrick, Heimel, Georg, Salzmann, Ingo, Koch, Norbert, Oehzelt, Martin

“…Band‐bending in organic semiconductors, occurring at metal/alkali‐halide cathodes in organic‐electronic devices, is experimentally revealed and…”
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Integer versus Fractional Charge Transfer at Metal(/Insulator)/Organic Interfaces: Cu(/NaCl)/TCNE by Hofmann, Oliver T, Rinke, Patrick, Scheffler, Matthias, Heimel, Georg

“…Semilocal and hybrid density functional theory was used to study the charge transfer and the energy-level alignment at a representative interface between an…”
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Doping of Organic Semiconductors: Impact of Dopant Strength and Electronic Coupling by Méndez, Henry, Heimel, Georg, Opitz, Andreas, Sauer, Katrein, Barkowski, Patrick, Oehzelt, Martin, Soeda, Junshi, Okamoto, Toshihiro, Takeya, Jun, Arlin, Jean-Baptiste, Balandier, Jean-Yves, Geerts, Yves, Koch, Norbert, Salzmann, Ingo

“…Molecular doping: The standard model for molecular p‐doping of organic semiconductors (OSCs) assumes integer charge transfer between OSC and dopant. This is in…”
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Electrostatic Interactions Shape Molecular Organization and Electronic Structure of Organic Semiconductor Blends by D’Avino, Gabriele, Duhm, Steffen, Della Valle, Raffaele Guido, Heimel, Georg, Oehzelt, Martin, Kera, Satoshi, Ueno, Nobuo, Beljonne, David, Salzmann, Ingo

“…Halogenation of conjugated molecules represents a powerful approach to tune the electronic structure of molecular thin films through inductive effects and…”
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The Impact of Disorder on the Energy Level Alignment at Molecular Donor–Acceptor Interfaces by Akaike, Kouki, Koch, Norbert, Heimel, Georg, Oehzelt, Martin

“…Interface disorder comprehensively explains the up‐and‐down (or vice versa) energy shift commonly measured for molecular donor–acceptor interfaces including…”
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The Dielectric Constant of Self‐Assembled Monolayers by Romaner, Lorenz, Heimel, Georg, Ambrosch‐Draxl, Claudia, Zojer, Egbert

“…Self‐assembled monolayers (SAMs) are fundamental building blocks of molecular electronics and find numerous applications in organic (opto)electronic devices…”
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Impact of bidirectional charge transfer and molecular distortions on the electronic structure of a metal-organic interface by Romaner, Lorenz, Heimel, Georg, Brédas, Jean-Luc, Gerlach, Alexander, Schreiber, Frank, Johnson, Robert L, Zegenhagen, Jörg, Duhm, Steffen, Koch, Norbert, Zojer, Egbert

“…Interface energetics are of fundamental importance in organic and molecular electronics. By combining complementary experimental techniques and…”
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Electronic structure of thiol-bonded self-assembled monolayers: Impact of coverage by Romaner, Lorenz, Heimel, Georg, Zojer, Egbert

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Charge transfer in and conductivity of molecularly doped thiophene-based copolymers by Ghani, Fatemeh, Opitz, Andreas, Pingel, Patrick, Heimel, Georg, Salzmann, Ingo, Frisch, Johannes, Neher, Dieter, Tsami, Argiri, Scherf, Ullrich, Koch, Norbert

“…ABSTRACT The electrical conductivity of organic semiconductors can be enhanced by orders of magnitude via doping with strong molecular electron acceptors or…”
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Impact of Collective Electrostatic Effects on Charge Transport through Molecular Monolayers by Obersteiner, Veronika, Egger, David A, Heimel, Georg, Zojer, Egbert

“…A microscopic understanding of charge transport through molecule-based systems is essential for advancing the field of molecular electronics. In the present…”
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Methanol on ZnO (101̅0): From Adsorption over Initial Dehydrogenation to Monolayer Formation by Abedi, Navid, Herrmann, Philipp, Heimel, Georg

“…An atomistic understanding of the reactions between methanol and zinc-oxide surfaces is key to optimizing hydrogen-on-demand delivery in fuel cells…”
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Adsorption-Induced Intramolecular Dipole: Correlating Molecular Conformation and Interface Electronic Structure by Koch, Norbert, Gerlach, Alexander, Duhm, Steffen, Glowatzki, Hendrik, Heimel, Georg, Vollmer, Antje, Sakamoto, Yoichi, Suzuki, Toshiyasu, Zegenhagen, Jörg, Rabe, Jürgen P, Schreiber, Frank

“…The interfaces formed between pentacene (PEN) and perfluoropentacene (PFP) molecules and Cu(111) were studied using photoelectron spectroscopy, X-ray standing…”
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Tuning the Ionization Energy of Organic Semiconductor Films: The Role of Intramolecular Polar Bonds by Salzmann, Ingo, Duhm, Steffen, Heimel, Georg, Oehzelt, Martin, Kniprath, Rolf, Johnson, Robert L, Rabe, Jürgen P, Koch, Norbert

“…For the prototypical conjugated organic molecules pentacene and perfluoropentacene, we demonstrate that the surface termination of ordered organic thin films…”
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