Lund University > Chemical Center > Chemical Physics > Research > Projects > Steady-state synchrotron measurements

Steady-state synchrotron measurements

People involved:
Former members: Sophie Canton, Wilfred Fullagar, Jens Uhlig, Monika Walczak, Niklas Gador

This project is related to the following Fields, Subjects and Techniques:

Fields: Photochemistry and Photophysics
Subjects: Photosynthesis, Dye-sensitized Solar Cells, Nanostructures, Metal Complexes, Reaction Dynamics
Techniques: X-ray absorption spectroscopy, X-ray diffractometry

Steady state work

Steady state EXAFS and diffraction measurements are useful to us in several ways. They give essential practical experience in handling relevant kinds of samples, equipment, data and software. Routine user access at synchrotron sources gives us access to the extensive capabilities and resources available at these facilities, while providing a mechanism to interact with specialists and experts at a practical level. We have made measurements at several synchrotron sources (MAXlab in Lund, ELSA in Bonn, BESSY in Berlin, APS in Chicago and DESY in Hamburg) to give fundamental chemical structure information in the context of the following projects:

Dye-sensitized solar cell with porphyrin/TiO2 active part
Synthesis, characterization and reactivity of dinuclear metal complexes for modelling of active sites in dinuclear metalloenzymes

In the more specialised context of ultrafast structural studies, steady state measurements provide a vital starting point, in particular ground state structures. These are very useful when performing single value decompositions of data that evolves in time. Steady state measurements also allow the opportunity for screening potential ultrafast samples when seeking to establish potential problems.

Further reading and Techniques applied

General overview and motivation for X-ray based measurements
X-ray absorption spectroscopy
X-ray Diffraction and the argumentation for broad bandwidth

Overview and motivation for ultrafast X-ray measurements
Developments done on ultrafast X-ray sources in Lund
Developments on X-ray Detectors

Measurements done on ultrafast synchrotron user facilities
Steady state measurements done on synchrotrons (This page)

Last update: 17 December 2007
Maintained by: Jens Uhlig