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Regensburg 2004 – scientific programme

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HL: Halbleiterphysik

HL 12: Poster I

Monday, March 8, 2004, 16:30–19:00, Poster A

16:30 HL 12.1 Herstellung und Charakterisierung optisch gepumpter, oberflächenemittierender Halbleiterlaser — •S. Hövel, N.C. Gerhardt, M. Hofmann, J. Yang, D. Reuter und A.D. Wieck
16:30 HL 12.2 Deep level transient spectroscopy on copper indium gallium diselenide thin film solar cells with different gallium content — •V. Mertens, R. Reineke-Koch, M. Köntges, and J. Parisi
16:30 HL 12.3 Five source PVD for the deposition of CIGSS thin films — •Mario Gossla and William N. Shafarman
16:30 HL 12.4 Surface-heat-emittance optimization of CIS-based flexible solar cells — •Carsten Bundesmann, Ferdinand Dürr, Mathias Schubert, and Karsten Otte
16:30 HL 12.5 Stray current contributions in photo-assisted tunneling spectroscopy on CIGSe absorbers: an aid or a nuisance? — •U. Herber, C. Heske, E. Umbach, F. Karg, T. P. Niesen, G. Hanna, and U. Rau
16:30 HL 12.6 Epitaxial growth of CuGaS2 on Si substrates investigated by high resolution X-ray diffraction — •J. Cieslak, A. Dietz, J. Eberhardt, M. Gossla, Th. Hahn, J. Kräusslich, H. Metzner, U. Reislöhner, W. Witthuhn, and F. Wunderlich
16:30 HL 12.7 Intrinsic Defect Levels in Epitaxial CuGaS2 on Si(111) — •J. Eberhardt, J. Cieslak, R. Goldhahn, Th. Hahn, H. Metzner, U. Reislöhner, and W. Witthuhn
16:30 HL 12.8 Application of the steady-state photocarrier grating technique to polymorphous silicon — •Nacera Souffi and Rudolf Brüggemann
16:30 HL 12.9 Developing design criteria for phase change alloys — •Daniel Severin, Daniel Wamwangi, Mengbo Luo, and Matthias Wuttig
16:30 HL 12.10 Optical properties of Zn1−xMnxSe studied by spectroscopic ellipsometry — •J. Kvietkova, B. Daniel, M. Hetterich, M. Schubert, D. Spemann, D. Litvinov, and D. Gerthsen
16:30 HL 12.11 Verstärkungseigenschaften von Ferninfrarotantennen — •Steffen Groth, André Wirthmann, Carsten Zehnder, Christian Heyn, Detlef Heitmann und Can-Ming Hu
16:30 HL 12.12 µ-Photolumineszenzspektroskopie der Resonanzfluoreszenz aus Quantenpunkten — •Rico Schwartz, Daniel Schwedt und Heinrich Stolz
16:30 HL 12.13 Elektron-Phonon-Wechselwirkung in InAs-Antidots — •Ch. Menk, K. Bittkau, Ch. Heyn, D. Heitmann und C.-M. Hu
16:30 HL 12.14 Diamagnetic Shift and Localization of Excitons in Disordered Quantum Wells — •Michal Grochol, Frank Grosse, and Roland Zimmermann
16:30 HL 12.15 Energy dependent optical selection rules for spin orientation in quantum wells — •Tobias Nowitzki, Stefan Pfalz, Roland Winkler, Daniel Hägele, Andreas Wieck, and Michael Oestreich
16:30 HL 12.16 Optical bandgap determination of MOVPE-grown hexagonal InN — •Raimund Kremzow, Bert Rähmer, Massimo Drago, Christoph Werner, and Wolfgang Richter
16:30 HL 12.17 MIR Fourier transformation spectroscopy on Cu2O — •M. Jörger, K.C. Agarwal, T. Fleck, and C. Klingshirn
16:30 HL 12.18 Mikroskopische Lumineszenzuntersuchungen an ZnMgO — •Sören Giemsch, F. Bertram, J. Christen, Th. Gruber und A. Waag
16:30 HL 12.19 Lokalisierungs- und Temperatureffekte bei der Transportdynamik von Exzitonen in ZnSe Quantenfilmen — •B. Dal Don, G. Schwartz, H. Zhao, H. Kalt, C. Bradford, K. Prior und I. Galbraith
16:30 HL 12.20 Femtosecond control of electronic motion in semiconductor double quantum wells — •Alex Matos-Abiague und Jamal Berakdar
16:30 HL 12.21 Photomixing at 1.55µ m - Application of the nipnip-THz-emitter concept to long wavelength materials — •Frank H. Renner, O. Klar, S. Malzer, M. Eckardt, G. Loata, T. Löffler, H. Roskos, D. Driscoll, M. Hanson, A.C. Gossard, and G.H. Döhler
16:30 HL 12.22 Molecular fluorescence in and near nanostructures — •Carsten Henkel, Lavinia Rogobete, and Vahid Sandoghdar
16:30 HL 12.23 Optical superlattices based on surface acoustic waves — •M. M. de Lima, Jr., R. Hey, and P. V. Santos
16:30 HL 12.24 Emission stimulation in opals — •Sergei Romanov, Dmitry Chigrin, Clivia Sotomayor Torres, Nikolai Gaponik, Alexander Eychmueller und Andrei Rogach
16:30 HL 12.25 Light scattering in thin opal films — •Sergei Romanov
16:30 HL 12.26 Asymptotic analysis of radiation pattern of a classical dipole in a photonic crystal — •Dmitry Chigrin and Clivia Sotomayor Torres
16:30 HL 12.27 Dynamics and entanglement of photon pulses in a photonic crystal — •Carsten Henkel and Geesche Boedecker
16:30 HL 12.28 Tuning a 2-D silicon photonic crystal using nonlinear optics — •Stefan L. Schweizer, Hong W. Tan, Henry M. van Driel, Ralf B. Wehrspohn, and Ulrich Gösele
16:30 HL 12.29 Trimming of two dimensional photonic crystal structures — •Markus Schmidt, Gunnar Boettger, Karolin Preusser-Mellert, Manfred Eich, Uwe Huebner, and Hans-Georg Meyer
16:30 HL 12.30 Reflection from two- and three-dimensional Photonic Crystals — •Marcus Diem, Suresh Pereira, and Kurt Busch
16:30 HL 12.31 Loss mechanisms in Photonic Crystal slabs — •Meikel Frank, Suresh Pereira, and Kurt Busch
16:30 HL 12.32 2D photonic crystal slab structures of high refractive index in inorganic glasses — •Karolin Preusser-Mellert, Markus Schmidt, Gunnar Boettger, Uwe Huebner, and Manfred Eich
16:30 HL 12.33 Characterization and Structure Determination of Mesoporous Silica Films for Optical Applications — •Denan Konjhodzic, Markus Schmidt, Helmut Bretinger, Manfred Eich, and Frank Marlow
16:30 HL 12.34 Crystal orientation dependence of pores in InP for photonic crystal applications — •Stefan Lölkes, Sergiu Langa, Jürgen Carstensen, and Helmut Föll
16:30 HL 12.35 Gas Sensors Based on 2D Photonic Crystals — •Torsten M. Geppert, Stefan L. Schweizer, Ralf. B. Wehrspohn, and Armin Lambrecht
16:30 HL 12.36 Controlling spontaneous emission from colloidal II-VI nanocrystals in microcavities — •Robert Kraus, Dmitry Talapin, Andrey L. Rogach, John M. Lupton, Jochen Feldmann, and Horst Weller
16:30 HL 12.37 Lasertätigkeit in zweidimensionalen photonischen Kristallen — •Karen Forberich, Andreas Gombert, Marc Stroisch, Uli Lemmer, Marcus Diem, Suresh Pereira und Kurt Busch
16:30 HL 12.38 Structure of Spin-Flip Excitations in Interacting Electron Systems at High Magnetic Fields — •U. Schmitt and G. Meissner
16:30 HL 12.39 Strukturierungsmethoden überwachsener Heterostruktur-Spaltkanten — •Markus Lermer, Dieter Weiss und Werner Wegscheider
16:30 HL 12.40 Density of States Tails in Random Magnetic Fields — •Riccardo Mazzarello, Stefan Kettemann, and Bernhard Kramer
16:30 HL 12.41 Leitfähigkeit von QH-Systemen im subkritischen Bereich und ihr Einfluß auf den Zusammenbruch des QHE — •Andre Buß, Frank Hohls, Fritz Schulze Wischeler, Günter Hein, B. Erol Sagol, Rolf J. Haug und Georg Nachtwei
16:30 HL 12.42 Untersuchungen an QH-FIR-Detektoren in Mäander- und Corbino-Geometrie — •A. Hirsch, C. Stellmach, J. M. Guldbakke, G. Hein und G. Nachtwei
16:30 HL 12.43 Einfluß der Austausch-Wechselwirkung auf den Quantentransport in spin-polarisierten Elektronensystemen in GaInAs-Quantengräben — •F. Vogt, G. Nachtwei, G. Hein und H. Künzel
16:30 HL 12.44 The Mesoscopic Chiral Metal-Insulator Transition in Quantum Hall Wires — •Stefan Kettemann, Alexander Struck, Bernhard Kramer, and Tomi Ohtsuki
16:30 HL 12.45 Tunneling of quasiholes in the fractional quantum Hall regime — •Moritz Helias and Daniela Pfannkuche
16:30 HL 12.46 Interactions and Integer Quantum Hall Fluctuations — •Christoph Sohrmann und Rudolf A. Römer
16:30 HL 12.47 Spectroscopic and transport measurements in the quantum Hall regime on an optimized structure — •Claas Bierwisch, Stefanie Döhrmann, Daniel Hägele, Peter Tranitz, Werner Wegscheider, and Michael Oestreich
16:30 HL 12.48 Terahertz Photoleitungs- und Transmissionsspektroskopie an tunnelgekoppelten doppellagigen zweidimensionalen Elektronengasen — •L. H. Böttger, S. Holland, C.-M. Hu, Ch. Heyn und D. Heitmann
16:30 HL 12.49 Breakdown of the quantum Hall effect in samples with intentionally introduced defects — •Dorina Diaconescu, Sascha Hoch, Dirk Reuter, and Andreas Wieck
16:30 HL 12.50 Strong increase of the electron effective mass in GaAs incorporating boron and indium — •Tino Hofmann, Claas von Middendorff, Gunnar Leibiger, Volker Gottschalch, and Mathias Schubert
16:30 HL 12.51 Optical spectroscopy of perovskitic oxynitrides — •M. Güngerich, P.J. Klar, W. Heimbrodt, A. Jayakar, A. Weidenkaff, S. Ebbinghaus, and A. Reller
16:30 HL 12.52 Controlled fabrication of well-aligned single-crystalline ZnO nanowires — •Hongjin Fan, Florian M. Kolb, Roland Scholz, Margit Zacharias, and Ulrich Gösele
16:30 HL 12.53 Influence of Bi doping upon the phase change characteristics of Ge2Sb2Te5 — •Ke Wang, Daniel Wamwangi, and Matthias Wuttig
16:30 HL 12.54 Controlled growth of zinc oxide nano-pillars with a vapor-solid-liquid process — •Anton Reiser, Andreas Ladenburger, Xinmin Cao, Uwe Röder, Rolf Sauer, and Klaus Thonke
16:30 HL 12.55 Regular silicon nano-pillars with high aspect ratios etched via self-organizing nano-porous polymer masks — •Andreas Ladenburger, Anton Reiser, Feng Yan, Johannes Konle, Werner A. Goedel, Rolf Sauer, and Klaus Thonke
16:30 HL 12.56 Conductance spectroscopy of an AFM-engraved quantum point contact — •B. Harke, C. Fricke, F. Hohls, R. J. Haug, D. Reuter, and A. D. Wieck
16:30 HL 12.57 The manipulation of the energy levels in InAs-quantum dots by thermal treatment — •Victorina Stavarache, Dirk Reuter, and Andreas Wieck
16:30 HL 12.58 Chemical Vapour Deposition of Silicon Nanowires — •Volker Schmidt, Stephan Senz, and Ulrich Goesele
16:30 HL 12.59 Investigation of Experimentally Observed InAs Quantum Dots with an Analytical Bond-Order Potential — •Thomas Hammerschmidt and Peter Kratzer
16:30 HL 12.60 Resonant tunneling through self organized InAs Quantum dots — •T. Lüdtke, F. Hohls, R. J. Haug, and K. Pierz
16:30 HL 12.61 Capacitance-voltage (CV) measurements on a InAs quantum dot ensemble and on single InAs quantum dots embedded in a GaAs matrix — •Heidemarie Schmidt, Stefan Jaensch, Gerald Wagner, and Marius Grundmann
16:30 HL 12.62 Ordering and strain in lateral InAs quantum dot molecules — •B. Krause, T. H. Metzger, R. Songmuang, A. Rastelli, and O. G. Schmidt
16:30 HL 12.63 Observation of aligned and self-assembled InAs quantum dots on a cleaved (110) GaAs surface — •R. Schulz, E. Uccelli, J. Bauer, D. Schuh, M. Bichler und G. Abstreiter
16:30 HL 12.64 Präparation und elektrische Charakterisierung von Quantendrähten in modulationsdotierten Si/SiGe-Heterostrukturen — •Sorin Poenariu, Ulrich Wieser, Ulrich Kunze, Thomas Hackbarth und Ulf König
16:30 HL 12.65 Kinetic Monte Carlo simulations of quantum dot stacks — •Roland Kunert and Eckehard Schöll
16:30 HL 12.66 Monolithic cantilever magnetometers with integrated quantum wires — •J.I. Springborn, M.A. Wilde, O. Rösler, M.P. Schwarz, Ch. Heyn, D. Heitmann, and D. Grundler
16:30 HL 12.67 Einfluß von Hintergrundladungen auf das elektrische Verhalten von Poly-Silizium Einzelelektron-Transistoren — •Michael Skender und Dieter P. Kern
16:30 HL 12.68 Optische Charakterisierung von ZnO:P- und ZnO:Li,N-PLD-Dünnfilmen — •Susanne Heitsch, Carsten Bundesmann, Evgeni M. Kaidashev, Holger von Wenckstern, Daniel Spemann, Mathias Schubert, Gabriele Benndorf, Michael Lorenz und Marius Grundmann
16:30 HL 12.69 MgxZn1−xO-Mischkristalle für UV-Bragg-Reflektoren — •Anke Carstens, Rüdiger Schmidt-Grund, Holger Hochmuth, Bernd Rheinländer, Daniel Spemann, Andreas Rahm, Michael Lorenz und Marius Grundmann
16:30 HL 12.70 Energy transfer from band states into the Mn 3d5 shell of (Zn,Mn)S nanowires — •J. Kampmann, L. Chen, P.J. Klar, W. Heimbrodt, F.J. Brieler, and M. Fröba
16:30 HL 12.71 A novel high-pressure pulsed laser deposition process for ZnO nanostructures — •E. M. Kaidashev, M. Lorenz, H. Hochmuth, D. Natusch, T. Nobis, A. Rahm, J. Lenzner, and M. Grundmann
16:30 HL 12.72 Selective area growth of self-organized ZnSe structures on patterned GaAs with SiO2, Si3N4 or carbonaceous masks by molecular-beam epitaxy — •J. Lupaca-Schomber, B. Daniel, M. Hetterich, P. Pfundstein, and D. Gerthsen
16:30 HL 12.73 High luminescence yield of N-doped ZnO thin films on sapphire grown by PLD — •M. Lorenz, H. Hochmuth, J. Lenzner, G. Benndorf, H. von Wenckstern, A. Rahm, A. Schön, S. Borenstain, and M. Grundmann
16:30 HL 12.74 Growth studies and n-type doping of Zn1−xMnxSe semimagnetic heterostructures — •B. Daniel, P. Baumann, K.C. Agarwal, C. Klingshirn, M. Hetterich, D. Litvinov, P. Pfundstein, and D. Gerthsen
16:30 HL 12.75 Bestimmung des effektiven Mn-Gehalts und der Landé-Faktoren von semimagnetischen Zn1−xMnxSe Schichten — •Daniel Tröndle, Hendrik Burger, Wolfgang Löffler, Bruno Daniel, Michael Hetterich, Elena Tsitsishvili und Heinz Kalt
16:30 HL 12.76 Composition-dependent structural and optical material parameters of Zn1−xMnxSe epilayers grown by molecular-beam epitaxy — •M. Hetterich, B. Daniel, P. Baumann, C. Klingshirn, P. Pfundstein, D. Litvinov, D. Gerthsen, K. Eichhorn, and D. Spemann
16:30 HL 12.77 Preparation of Mn-doped ZnO thin films for spintronics — •Erick Guzmán, Holger Hochmuth, Michael Lorenz, Daniel Spemann, Holger von Wenckstern, Rüdiger Schmidt-Grund, Peter Busch, Annette Setzer, Pablo Esquinazi, Heidemarie Schmidt, and Marius Grundmann
16:30 HL 12.78 Nitrogen doping of ZnO and post-growth rapid thermal annealing — •Nikolay Oleynik, Armin Dadgar, Daniel Forster, Frank Bertram, Jürgen Bläsing, Andre Krtschil, Annette Diez, Thomas Hempel, Karsten Fehse, Jürgen Christen, Alois Krost, Markus Seip, and Arnd Greiling
16:30 HL 12.79 Zeitaufgelöste Spektroskopie von ZnO - Epitaxieschichten — •Robert Hauschild, Heiko Priller, Thomas Gruber, Christoph Kirchner, Andreas Waag, Claus Klingshirn und Heinz Kalt
16:30 HL 12.80 Temperaturverlauf der Bandlücke von ZnO bei hohen Temperaturen — •Jan Brückner, Heiko Priller, Claus Klingshirn und Heinz Kalt
16:30 HL 12.81 Einfluss von verschiedenen Nukleationsschichten auf die Eigenschaften von ZnO-Dünnfilmen — •Holger von Wenckstern, Andreas Rahm, Jörg Lenzner, Michael Lorenz, Holger Hochmuth und Marius Grundmann
16:30 HL 12.82 Nano structured material in electrodynamic traps — •Silko Barth and Dieter Gerlich
16:30 HL 12.83 Real-time spectroscopic ellipsometry monitoring of a ZnO thin film pulsed laser deposition growth — •N. Ashkenov, M. Schubert, H. Hochmuth, M. Lorenz, M. Grundmann, and B. Johs
16:30 HL 12.84 Elektrische Charakterisierung von n-leitendem ZnO mittels Schottky Kontakten — •Holger von Wenckstern, Swen Weinhold, Gisela Biehne, Rainer Pickenhain, Holger Hochmuth, Michael Lorenz und Marius Grundmann
16:30 HL 12.85 Identifizierung von flachen Donatoren in ZnO — •H. Alves, B.K. Meyer und A. Rodina
16:30 HL 12.86 Temperature-dependent band-gap energies and optical constants of ZnO — •N. Ashkenov, M. Schubert, W. Chakai, G. Benndorf, H. Hochmuth, M. Lorenz, and M. Grundmann
16:30 HL 12.87 Verspannungs- und Temperaturabhängigkeit der Energiebandstruktur von wurtzitischem ZnO mittels Empirischer Pseudopotential (EPP)-Rechnungen unter Berücksichtigung der Spin-Bahn-Wechselwirkung — •Daniel Fritsch, Heidemarie Schmidt und Marius Grundmann
16:30 HL 12.88 Room temperature UHV bonding of Si to GaAs — •Alin Mihai Fecioru, Stephan Senz, and Ulrich Goesele
16:30 HL 12.89 a-Si/SiOx Bragg-Reflektoren auf mikro-strukturierten Halbleitern — •Rüdiger Schmidt-Grund, Thomas Nobis, Bernd Rheinländer, Volker Gottschalch, Helmut Herrnberger und Marius Grundmann
16:30 HL 12.90 Free-charge carrier properties in AlGaAs/GaAs superlattices investigated by magnetooptic ellipsometry — •Claas von Middendorff, Tino Hofmann, Gunnar Leibiger, and Mathias Schubert
16:30 HL 12.91 The Boltzmann Equation in Semiconductor Superlattices — •Bernhard Rieder and Joachim Keller
16:30 HL 12.92 The Correlation between Emission Spectra and Atomic Scale Structure of GaAs/AlGaAs Quantum Wells — •M. Erdmann, C. Ropers, M. Wenderoth, L. Winking, T. C. G. Reusch, R. G. Ulbrich, S. Malzer, and G. Döhler
16:30 HL 12.93 Micro- and nanotubes made of strained metal/semiconductor double layers — •Olrik Schumacher, Stefan Mendach, Christian Heyn, Holger Welsch, and Wolfgang Hansen
16:30 HL 12.94 FWM-Experimente an dotierten Einzel-Quantumwells — •Patrick Schröter, Bertram Su, Christian Schüller, Max Bichler und Werner Wegscheider
16:30 HL 12.95 Optical properties of organic – inorganic mixed layers in dependence on preparation conditions — •Marieta Levichkova, Jacky Assa, Hartmut Fröb, and Karl Leo
16:30 HL 12.96 Investigation of charge carrier dynamics in polymer/fullerene solar cells by means of photoinduced reflection/absorption spectroscopy — •Christian Arndt, Uladzimir Zhokhavets, Martina Mohr, Gerhard Gobsch, Maher Al-Ibrahim, and Steffi Sensfuss
16:30 HL 12.97 Exciton transport in PTCDA layers studied by time-resolved, temperature dependent luminescence quenching experiments. — •R. Schüppel, K. Leo, and M. Hoffmann
16:30 HL 12.98 Determination of the excitonic dispersion in α-PTCDA with electron energy loss spectroscopy and optical spectroscopy — •Reinhard Scholz, Igor Vragović, and Michael Schreiber
16:30 HL 12.99 Kristallographie holographisch hergestellter dreidimensionaler Photonischer Kristalle. — •Daniel C. Meisel, Martin Wegener und Kurt Busch
16:30 HL 12.100 Untersuchung zu EDFA-Pumplasern — •M. Zimmermann, N. Lichtenstein und H. Schweizer
16:30 HL 12.101 Selektiven Epitaxie in der MOVPE von GaN und InGaN Inseln auf maskierten GaN Buffern — •V. Perez-Solorzano, M. Ubl, H. Gräbeldinger, H. Schweizer und M. Jetter
16:30 HL 12.102 Thermal behaviour of high power 1300nm SLDs — •L. Fu, H. Schweizer, L. Li, A. Baechle, S. Jochum, G. Bernatz, and S. Hansmann
16:30 HL 12.103 Untersuchung verschiedener Geometrien beim Gate Recess von AlGaN/GaN HEMTs — •H. Roll, A. M. Malik, G. Moutchnik, F. Scholz und H. Schweizer
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