Broadband Dielectric Spectroscopy (BDS)
Broadband dielectric spectroscopy is a technique that measures the electric impedance of a material as a function of frequency and temperature. It is commonly used to investigate sample conductivity, or to study different molecular relaxation processes.
We have one BDS setup from Novocontrol at the division of biological physics. This has two different spectral analysers: one Alpha-S High Resolution Dielectric Analyser, capable of covering a frequency region of 10-2 – 107 Hz, and one Agilent 4291B RF Impedance Analyser, used for higher frequencies (106 – 109 Hz). It has a temperature control system capable of controling the sample temperature in an approximate range of -150°C to 430°C.