Purchase of a Spectrometer

General News

We are pleased to announce the commissioning of our new LS Spectrometer II from LS Instruments. This state-of-the-art instrument enables the measurement of particle sizes in suspension within a range (according to the manufacturer) of 0.15 nm to 5 µm.

Faculty Centre for Nano Structure Research

In addition to conventional dynamic light scattering (DLS), the system also offers the option of measuring depolarized dynamic light scattering (DDLS) or static light scattering (SLS).

Overview of functions

  1. Dynamic Light Scattering (DLS):
    • Enables precise determination of particle sizes (hydrodynamic radius) and size distributions by measuring the translational diffusion coefficient.
  2. Depolarized DLS (DDLS):
    • The depolarized DLS option. While standard DLS is ideal for spherical particles, the DDLS technique allows us to measure the rotational diffusion coefficient and thus characterize anisotropic (non-spherical) particles such as rods, ellipsoids, etc.
  3. Static Light Scattering (SLS):
    • This method allows, among other things, the measurement of the gyration radius and the second virial coefficient by recording the angular distribution of the scattered light.

If you are interested, please contact Martin Haßler or Markus Mezger.