Esteem
19/08/2017 - 06:48
(c)
http://esteem.ua.ac.be/main.aspx?c=*HOME&n=1012
Technische Universität Dresden

 

The Triebenberg Laboratory of the Technische Universitaet Dresden is dedicated to Transmission Electron Microscopy (TEM) and Holography for answering burning questions in solid state physics and materials science, such as

 

  • Which atoms are where? (e.g. at interfaces)
  • Which (electric, magnetic, mechanic) fields are around? (e.g. in ferromagnetics)
  • What are the potentials? (e.g. in semiconductors)
  • What is the charge distribution? (e.g. in ferroelectrics)
  •  

Methods: In addition to conventional TEM up to atomic resolution, we are specialized in holography to reveal the phase of the electron wave, which contains a lot of additional object information, such as fields. As one of the pioneers of Electron Holography (formerly in Tuebingen University), we develop electron holography for understanding basic electron physics (e.g. coherence properties, CHIRALTEM [www.chiraltem.physics.at/]), and for structure research in solid-state physics and materials science. Our efforts comprise development of hardware as well as software for wave optical analysis and quantitative interpretation in terms of the object by modeling and simulation.

 

Equipment: The Triebenberg Lab is designed for worldwide minimum disturbance levels allowing access to materials details surpassing the given specs of the TEM hence reaching highest performance by means of the following electron microscopes:

 

  • Philips CM 30 FEG/UT Special Tübingen (InfoLimit 0.09nm)
  • Philips CM200 FEG/ST Lorentz (InfoLimit 0.12nm)
  • FEI Tecnai F20/Cs-corrected (Resolution 0.1nm)
  •  

These TEM´s are equipped with electron biprisms for holography, with CCD-cameras for image-pickup, and with image processing computers for on-line processing and evaluation of the findings. Dedicated software for wave optical analysis is developed in our lab.

 

Applications: We apply our expertise for the investigation of specially challenging questions like

 

  • Atomic structure analysis
  • Holographic materials analysis
  • Magnetic fields
  • Ferroelectric fields
  • Charge modulation
  • Dopant profiling in semiconductors
  •  

Cooperation

 

In case you have such a challenging question, please contact us for further discussion about our feasibilities to help solving your problems.

 

01.jpg test 2.jpg 03.jpg 04.jpg 5.jpg
Nanoparticles Interfaces Magnetics Semiconductors Ferroelectrics

contact

 

isplogo.gif

 

Prof.  Dr. Hannes Lichte
Institute of Structure Physics
Triebenberg Laboratory
Technische Universität Dresden
DE-01062 DRESDEN
GERMANY
Phone + 49 351 2150 8910
Fax     + 49 351 2150 8920
E-mail: Hannes.Lichte@Triebenberg.de
Web site: www.Triebenberg.de