ALD Lab

Atomic Layer Deposition (ALD) is a modified chemical vapor deposition (CVD) process for depositing thin films or nanoparticles with sub-nm precision in feature size. ALD is based on the sequential exposure of a substrate to gas-phase precursor molecules, which possess the unique characteristic of self-limiting surface chemistry. ALD has emerged as an important technique for thin film depositions, owing to its unique advantages including highly uniform and conformal coverage on high-aspect-ratio substrates and exquisite control of thickness at the atomic level.

Our group has been working in this area for many years and has accumulated a lot of experience. Various oxide systems, metals, transition metal dichalcogenides, and nitrides have been developed for different applications including but not limited to:

  • 2D materials and topological insulators,
  • Thermoelectrics,
  • Active battery components,
  • Protection layers, and
  • Biocompatible thin films.

In addition, the ALD technique is applied to deposit a charge carrier manipulator layer on thermoelectric powders and protective layers or powders for Li and Na anode.

Equipment

  • Thermal ALD reactors (Veeco, Arradiance, Beneq, Home made)
  • Plasma ALD reactors (Veeco, Arradiance)
  • Rotary reactors for thermal ALD on powders
  • Gloveboxcluster with integrated ALD devices for coating of moisture-sensitive materials
  • Precursor glovebox incl. freezer (MBraun)
  • 2-Zone-Furnace
  • 3-Zone-Furnace
  • Ellipsometer (SENpro)

Scientist in Charge

Dr. Sebastian Lehmann

Room: D 1E.13
Phone: +49 351 4659 847
E-mail