Description
Electron Paramagnetic Resonance (EPR) spectroscopy is a technique which probes the environment of unpaired electron in materials. From the interaction between unpaired electron and surrounding nuclei quantitative and structural information about the material can be obtained. It is particularly useful for studying metal complexes or organic radicals.
The EPR spectrometer in the SPIN-Lab is the Bruker X-Band (9.5-9.9 GHz) continuous-way (CW) ELEXSYS E500 system. The CW operation enables high sensitivity down to 1.0 x 109 spins. The spectrometer is fitted with a 1.45 T magnet and can be used in combination with a 20 Hz Q-switched Nd:YAG laser. The laser has OPO system for broadband operation between 210 and 2750 nm with 50 mJ/pulse @355 nm. The combination of EPR system and laser enable the study of transient phenomena.
The system is equipped with Cryogen-Free Variable Temperature Cryostat (CF-VTC) allowing stable measurements between 1.8K and 300 K with typical stability of ±10 mK.
The system is equipped with Cryogen-Free Variable Temperature Cryostat (CF-VTC) allowing stable measurements between 1.8K and 300 K with typical stability of ±10 mK.
