Research Assistant

Address

Universität Hamburg
MIN Fakultät
Institut für Physikalische Chemie
Grindelallee 117
20146 Hamburg
Germany

Room

VG II 143

Telephone

(+49)-(0)40-42838-8277

E-Mail

Tobias.Kipp(at)chemie.uni-hamburg.de

Academic Career

Study of Physics in Cologne and Hamburg. PhD in Physics in 2004.
Head of the subgroup "Optical Spectroscopy of Quantum Structures" in the group of Prof. Dr. D. Heitmann at the Institute of Applied Physics in Hamburg from 2004 until 2010.
Since 2009 member of the group of Prof. Dr. A. Mews.
Habilitationsschrift "Optical Spectroscopy of Quantum Structures Confining Electrons, Phonons, and Photons" submitted December 2010 (request an electronic copy).
Habilitation in "Experimental Physics" in June 2011.

Research Topics and Selected Publications

A more complete publication list can be found here.

Optical Microtube Ringresonators:

• „Light confinement and mode splitting in rolled-up semiconductor microtube bottle resonators", <new>
  Ch. Strelow, C. M. Schultz, H. Rehberg, M. Sauer, H. Welsch, A. Stemmann, Ch. Heyn, D. Heitmann, and T. Kipp,
  Physical Review B 85, 155329 (2012).
  
• „Light Confinement in Microtubes",
  T. Kipp, Ch. Strelow, and D. Heitmann,
  Chapter 7 in Quantum Materials, D. Heitmann (Ed.), Springer (Berlin), 2010.
• "Optical Modes Excited by Evanescent-Wave-Coupled PbS Nanocrystals in Semiconductor Microtube Bottle Resonators",
  K. Dietrich, Ch. Strelow, C. Schliehe, Ch. Heyn, A. Stemmann, S. Schwaiger, S. Mendach, A. Mews, H. Weller, D. Heitmann, and T. Kipp,
  Nano Letters 10, 627 (2010).
• “Optical microcavities formed by semiconductor microtubes using a bottle-like geometry”,
  Ch. Strelow, H. Rehberg, C. M. Schultz, H. Welsch, Ch. Heyn, D. Heitmann, and T. Kipp,
  Physical Review Letters 101, 127403 (2008).
• “Optical Microtube Ring Cavities”,
  T. Kipp (invited article),
  Advances in Solid State Physics 47, 17 (2008).
• "Optical modes in semiconductor microtube ring resonators",
  T. Kipp, H. Welsch, Ch. Strelow, Ch. Heyn, and D. Heitmann,
  Physical Review Letters 96, 077403 (2006).

Spectroscopy of Chemically Synthesized Nanowires:

• „Charge separation in CdSe/CdTe hetero-nanowires measured by electrostatic force microscopy”, <new>
  S. Schäfer. A. Reich Z. Wang, T. Kipp, and A. Mews,
  Applied Physics Letters 100, 022110 (2012).
  
• „Fluorescence modulation of single CdSe nanowires by charge injection through the tip of an atomic-force microscope”,
  S. Schäfer, Z. Wang, T. Kipp, and A. Mews,
  Physical Review Letters 107, 137403 (2011).
  
• „Diameter Scaling of the Optical Band Gap in Individual CdSe Nanowires”,
  A. Myalitsin, Ch. Strelow, Z. Wang, Z. Li, T. Kipp, and A. Mews,
  ACS Nano 5, 7920 (2011).
  
• „Laser-Induced Charge Separation in CdSe Nanowires”,
  S. Schäfer, Z. Wang, R. Zierold, T. Kipp, and A. Mews
  Nano Letters 11, 2672 (2011).

Spectroscopy of Single Semiconductor Nanocrystals and Hybride Metal-Semiconductor Nanostructures:

• „Photoluminescence of Individual Au/CdSe Nanocrystal Complexes with Variable Interparticle Distances”, <new>
  X. Ma, K. Fletcher, T. Kipp, M. P. Grzelczak, Z. Wang, A. Guerrero-Martínez, I. Pastoriza-Santos, A. Kornowski, L. M. Liz-Marzán, and A. Mews,
  Journal of Physical Chemistry Letters 2, 2466 (2011).
  
• „Fluorescence Enhancement, Blinking Supression, and Gray States of Individual Semiconductor Nanocrystals Close to Gold Nanoparticles”,
  X. Ma, H. Tan, T. Kipp, and A. Mews,
  Nano Letters 10, 4166 (2010).
• „Direct observation of confined acoustic phonons in the photoluminescence spectra of a single CdSe-CdS-ZnS core-shell-shell nanocrystal”,
  G. Chilla, T. Kipp, T. Menke, D. Heitmann, M. Nikolic, A. Frömsdorf, A. Kornowski, S. Förster, and H. Weller,
  Physical Review Letters 100, 057403 (2008).

Raman Spectroscopy of Electronic Excitations in Semiconductor Quantum Structures:

• „Elementary excitations in charge-tunable InGaAs quantum dots studied by resonant Raman and resonant photoluminescence spectroscopy”,
  T. Köppen, D. Franz, A. Schramm, Ch. Heyn, J. Gutjahr, D. Pfannkuche, D. Heitmann, and T. Kipp,
  Physical Review B 83, 165307 (2011).
  
• „Electronic Raman Spectroscopy of Quantum Dots",
  T. Kipp, C. Schüller, and D. Heitmann,
  Chapter 6 in Quantum Materials, D. Heitmann (Ed.), Springer (Berlin), 2010.
  
• „Resonant Raman transitions into singlet and triplet states in quantum dots containing two electrons”,
  T. Köppen, D. Franz, A. Schramm, Ch. Heyn, D. Heitmann, and T. Kipp,
  Physical Review Letters 103, 037402 (2009).
  

Photoluminecsence Spectroscopy of MBE-grown Quantum Dots:

• „Large array of single, site-controlled InAs quantum dots fabricated by UV-nanoimprint lithography and molecular beam epitaxy”, <new>
  A. Schramm, J. Tommila, Ch. Strelow, T. V. Hakkarainen, A. Tukiainen, M. Dumitrescu, A. Mews, T. Kipp, and M. Guina,
  Nanotechnology 23, 175701 (2012).
• „Highly uniform and strain-free GaAs quantum dots fabricated by filling of self-assembled nanoholes”,
  Ch. Heyn, A. Stemmann, T. Köppen, Ch. Strelow, T. Kipp, M. Grave, S. Mendach, and W. Hansen,
  Applied Physics Letter 94, 183113 (2009).
• „Local droplet etching of nanoholes and rings on GaAs and AlGaAs surfaces”,
  A. Stemmann, Ch. Heyn, T. Köppen, T. Kipp, and W. Hansen,
  Applied Physics Letters 93, 123108 (2008).
  

Raman Spectroscopy of Chemically Synthesized Nanocrystals:

• „Nonhydrolytic Synthesis of High-Quality Anisotropically Shaped Brookite TiO2 Nanocrystals”,
  R. Buonsanti, V. Grillo, E. Carlino, C. Giannini, T. Kipp, R. Cingolani, and P. D. Cozzoli,
  Journal of the American Chemical Society 130, 11223 (2008).
• "Confined Optical Phonon Modes in Aligned Nanorod Arrays Detected by Resonant Inelastic Light Scattering",
  C. Nobile, V. A. Fonoberov, S. Kudera, A. Della Torre, A. Ruffino, G. Chilla, T. Kipp, D. Heitmann, L. Manna, R. Cingolani, A. A. Balandin, and R. Krahne,
  Nano Letters 7, 476 (2007).
  

Microdisks:

• "Broadband emission and low absorption in microdisks with AlGaAs quantum wells",
  T. Kipp, K. Petter, Ch. Heyn, D. Heitmann, and C. Schüller,
  Applied Physics Letters 84, 1477 (2004).
• "Fabrication of large periodic arrays of AlGaAs microdisks by laser-interference lithography and selective etching",
  K. Petter, T. Kipp, Ch. Heyn, D. Heitmann, and C. Schüller,
  Applied Physics Letters 81, 592 (2002).
  

Teaching

Chemistry Department (since summer term 2009):
Lecture "Physikalische Chemie III",
Lecture "Physikalische Chemie und Mathematik",
Exercises in "Physikalische Chemie I", "Physikalische Chemie II", "Physikalische Chemie III" und "Physikalische Chemie und Mathematik".

Physics Department:
Lectures and Exercises in "Nanostrukturphysik I" and "Nanostrukturierte Festkörper",
Exercises in "Physik IV (Festkörperphysik)".