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Research Group "Festkörperphysik, TU Graz"
(Ao. Univ. Prof. Dipl.-Ing. Dr. Egbert Zojer)

Head of the research group:
Last name:Zojer
First name(s):Egbert
Title:Ao. Univ. Prof. Dipl.-Ing. Dr.
Position:AG-Leiter
Institution:
Institution:Graz University of Technology
Organizational unit:Institut für Festkörperphysik
Street address:Petersgasse 16
Postal code:8010
City:Graz
Mail:egbert.zojer(at)tugraz.at
Homepage:http://www.if.tugraz.at/dweb.php?10
Assignments to Research Areas:
Research area(s):
  • Nano Science
  • Opto Electronics
  • Quantum Electronics
  • Semiconductor Physics
  • Solid State Physics
  • Surfaces, Boundaries and Thin Films
Assignments to Fields of Work According to the Austrian System of Science Areas:
Field(s) of work:
  • Nanotechnology (210006)
  • Quantum mechanics (103025)
  • Semiconductor physics (103011)
  • Solid state physics (103009)
  • Surface physics (103020)
Data Acquisition:
Date of the data acquisition:24.05.2012
Data acquisition period:from: 2007   up to including: 2012
Research Group at the Time of the Data Acquisition:
Scientific group members:
4 Persons
DI David Egger
Martin Stolterfoht MSc
Mag. Simon Josef Ausserlechner
Manuel Vieider
Percentage project-funded:100
Scientific Output in the Above Data Acquisition Period:
H-index of the group head:33
Number of publications:58
Five most important publications:
  1. V. G. Ruiz Lopez, W. Liu, E. Zojer, M. Scheffler, and A. Tkatchenko, "Density-Functional Theory with Screened van der Waals Interactions for the Modeling of Hybrid Inorganic/Organic Systems", Phys. Rev. Lett 108, 146103 (2012).
  2. F. Rissner, D. A. Egger, A. Natan, T. Körzdörfer, S. Kümmel, L. Kronik, and E. Zojer, "Collectively Induced Quantum-Confined Stark Effect in Monolayers of Molecules Consisting of Polar Repeating Units", J. Am. Chem. Soc. 133, 18634 (2011);
  3. O. T. Hofmann, D. A. Egger, and E. Zojer, "Work-function modification beyond pinning: When do molecular dipoles count ?", Nano Letters 10, 4369 (2010).
  4. L. Romaner, G. Heimel, J. L. Brédas, A. Gerlach, F. Schreiber,G. Heimel, F. Rissner, E. Zojer, "Modeling the electronic properties of Pi-conjugated self-assembled monolayers", Progress Report, Advanced Materials 22, 2494 (2010). R. L. Johnson, J. Zegenhagen, S. Duhm, N. Koch, and E. Zojer, "Impact of bi-directional charge transfer and molecular distortions on the electronic structure of a metal-organic interface", Phys. Rev. Lett. 99, 256801 (2007).
  5. L. Romaner, G. Heimel, J. L. Brédas, A. Gerlach, F. Schreiber, R. L. Johnson, J. Zegenhagen, S. Duhm, N. Koch, and E. Zojer, "Impact of bi-directional charge transfer and molecular distortions on the electronic structure of a metal-organic interface", Phys. Rev. Lett. 99, 256801 (2007).
Patents:
  • Patent AT 507467 "Bifunktionaler Gassensor für basische Gase", P. Pacher, A. Lex, E. Zojer, C. Slugovc, G. Trimmel, E. J. W. List.
Five most important talks:
  1. E. Zojer, "Understanding the Electronic Structure of Metal-Organic Interfaces", Fritz Haber Institute of the Max Planck Society, Berlin, Germany, May 2012.
  2. E. Zojer, "Understanding the Electronic Structure of Metal-Organic Interfaces through Quantum-Mechanical Modeling", Weizmann Institute of Sciences, Rehovot, Israel, May 2012.
  3. E. Zojer, G. Heimel, F. Rissner, L. Romaner, O. T. Hofmann, D. A. Egger, L.J. Wang, Z. Y. Ma, Z. Shuai, G. M. Rangger, and A. M. Track, "Structure to Property Relationships for Metal-Organic Interfaces", 10th International Symposium on ?-conjugated Systems, Beijing, China, October 2011.
  4. E. Zojer, "Modelling the electronic properties of metal-organic "charge-transfer" interfaces" 6th International Workshop on Electronic Structure and Processes at Molecular-Based Interfaces (ESPMI-VI), Karlsruhe, Germany, September 2011.
  5. E. Zojer (presentation held by G. Heimel due to illness), "Controlling the energy-level alignment at metal-organic interfaces", 427. WE-Heraeus-Seminar "Molecular and Organic Electronics: Bridging the Gap", Bad Honnef, Germany, January 2009.
Projects and Funding Granted in the Above Data Acquisition Period:
Competitive projects:
  • Nanoinitiative:
    Co-applicant: Physics of Organic (Opto)Electronics - Based Sensor Devices (ISOTEC Cluster)
    Laufzeit: 2005 - 2009; Anteil am Projekt: 120 kEuro
  • EU-FP6:
    Partner: Interface-Control for Organic Devices
    Laufzeit: 2006 - 2009; Anteil am Projekt: 240 kEuro
  • FWF:
    Organic Thin Film Transistors as Chemical Sensors
    Laufzeit: 2007 - 2010; Budget: 250 kEuro
  • Nanoinitiative:
    Co-Applicant: Device simulation and temperature dependent measurements of critical OTFT parameters for the optimisation of the semiconductor growth in NIL-processed active devices (NIL-Austria cluster)
    Laufzeit: 2008 - 2011; Anteil am Projekt: 132 kEuro
  • FWF:
    Computational Nanoscience
    Laufzeit: 2008 - 2011; Budget: 230 kEuro
  • FWF: ERA-CHEMISTRY
    Tuning the electronic properties of SAMs by embedded molecular dipoles
    Laufzeit: 2012-2015; Budget: 129 kEuro
Research Topics:
Current research topics:
  • Organische Halbleiter: Simulation metall-organischer Grenzflächen mit quantenmechanischen Methoden
  • Grenzflächenmodifikationen in organischen Transistoren
Future topics (next 5 years):
  • Multiskalenmodellierung organischer Halbleiter und von Hybridsystemen (organisch/organsich und organsich/anorganisch) + Anregungen
Teaching and Research Mobility in the Above Data Acquisition Period:
Doctor's theses:
7 doctor's theses
  1. Ferdinand Rissner, "Interface energetics and morphology of metal-organic multilayer structures", TU Graz 2012
  2. Marco Marchl, "Towards Understanding and Controlling the Device Characteristics of Organic Thin Film Transistors", TU Graz 2011
  3. Oliver Hofmann, "Understanding and controlling the interface properties of organic semiconductors", TU Graz 2010
  4. Anna M. Track, "Modifying Surfaces Relevant for Organic Devices: An Experimental and Theoretical Investigation", TU Graz 2010 (mit Michael Ramsey)
  5. Gerold Rangger, "Modelling of metal-organic interfaces for improving state-of-the-art organic electronic devices", TU Graz 2010
  6. Peter Pacher, "Organic Thin Film Transistors and Resistors for Amine Detection", TU Graz 2008
  7. Lorenz Romaner, "Modelling of Organic Semiconductors and their Interaction with Metallic Surfaces", TU Graz 2007
Diploma and master theses:
13 theses
  1. Yao Shan, "Monte Carlo study of interstitial diffusion in the presence of solute atom traps" (with Ernst Kozeschnik, TU Vienna), TU Graz 2012
  2. Hannes Brandner, "Modifying the dielectric-semiconductor interface in organic thin-film transistors using a soluble semiconducting polymer", TU Graz 2012
  3. Martin Stolterfoht, "Molecular dynamics modelling of self-assembled monolayers on noble metals", TU Graz/ Uni Graz 2012
  4. Lukas Ladinig, "Chemically reactive interfacial layers in organic thin film transistors", TU Graz 2011
  5. Reinhold Hetzel, "Controlling the threshold voltage of solution processed organic thin film transistors", TU Graz 2011
  6. Stefan Kirnstötter, "Organic thin film transistors with functional interfacial layers", TU Graz 2011
  7. Thomas Obermüller, "Temperature dependent bias stress measurements on organic thin film transistors", TU Graz 2010
  8. Lukas Wittwer, "Investigation of the structure of metal/organic and organic/organic interfaces", TU Graz 2010
  9. David Egger, "Electronic structure of self-assembled monolayers with distributed dipole moments", TU Graz 2010
  10. "Ferdinand Rissner, "SAM-Induced Work Function Modification and Energy-Level Alignment at the Interface between Organic Semiconductors", TU Graz 2009"
  11. Andrej Golubkov, "Temperature dependent characterization of charge transport in organic thin film transistors", TU Graz 2008
  12. Harald Etschmaier, "Application of self assembled monolayers and Langmuir Blodgett films in organic field effect transistors", TU Graz 2008
  13. Veronika Proschek, "Applications of Chemically Reactive Interfacial Layers for Sensing Active Organic Thin Film Transistors", TU Graz 2007
Bachelor theses:
4 theses
  1. Christian Straka, " Automatisierung von Tieftemperaturmessungen an Organischen Feldeekttransistoren", TU Graz 2010
  2. Bernhard Kretz, "Ionisationspotenziale, Elektronenaffinitäten, Dipolmomente, Polarisierbarkeiten und Ladungsverteilungen von organischen Halbleitermolekülen", TU Graz 2009
  3. Peter Krabb, "Untersuchung der Polarisierbarkeit organischer Halbleiter", TU Graz 2008
  4. Johannes Kofler,"Ionisationspotential und Elektronenaffinität organischer konjugierter Moleküle", TU Graz 2008
International networking:
  • Manuel Vieider (outgoing), University Bologna, 2012
  • David Egger (outgoing), Weizmann Institute of Science, 2012
  • Yoko Tomita (incoming), Ciba University, 2011
  • Ferdinand Rissner (outgoing), Tsinghua University, 2011
  • David Egger (outgoing), Humboldt-Universität zu Berlin, 2011
  • Ferdinand Rissner (outgoing), Weizmann Institute of Science, 2010
  • David Egger (outgoing), Humboldt-Universität zu Berlin, 2009
  • Gerold Rangger (outgoing), Chinese Academy of Sciences, 2008
  • Gerold Rangger (outgoing), Georgia Institute of Technology, 2007
  • Egbert Zojer (outgoing), Georgie Institute of Technology, 2006
  • Egbert Zojer (outgoing), Chinese Academy of Sciences, 2006
  • Lorenz Romaner (outgoing), Chinese Academy of Sciences, 2006
  • Gerold Rangger (outgoing), Georgia Institute of Technology, 2007
  • Egbert Zojer (outgoing), Georgia Institute of Technology, 2005
  • Lorenz Romaner (outgoing), Georgia Institute of Technology, 2005
  • Leeor Kronik (incoming), Weizmann Institute of Science, 2009
  • Amir Natan (incoming), Weizmann Institute of Science, 2009
  • LinJun Wang (incoming), Chinese Academy of Sciences, 2008
  • LinJun Wang (incoming), Chinese Academy of Sciences, 2007
  • Georg Heimel (incoming), MIT, 2007
  • Karin Schmidt (incoming), Georgia Institute of Technology 2007
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