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Institute Silicon Photovoltaics

EPR spectrometers

Our lab is equipped with EPR spectrometers covering an ultra-wide range of resonance fields/frequencies.

The following spectrometers are available to both, in house and external users:

  1. Bruker ESP 300 X-band spectrometer, equipped for quantitative and very high temperature (up to 1000 K) EPR measurements.
  2. Bruker Elexsys 580 X- Q-band EPR and ENDOR spectrometer (Fig. 1), with Pulsed Double Electron Double Resonance (PELDOR) and lab built pulsed EDMR and optically detected magnetic resonance extensions.
  3. Bruker Elexsys 780 system 263 GHz / 12 T EPR/ENDOR spectrometer (Fig. 2) equipped for pulsed and cw EPR, ENDOR and EDMR operation.
  4. A unique broad band FD-FT THz-EPR set-up (Fig.3) at HZB’s storage ring BESSY II covering a frequency range from 150 GHz to 1.5 THz. This instrument is available to HZB and FUB in house and external users (via HZB’s external user platform). The FD-FT THz-EPR system is equipped with an ultra-high resolution IFS 125 FTIR spectrometer, a sweepable 10 T magnet and liquid He cooled bolometers.
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Fig. 1  Bruker Elexsys 580 X- Q-band EPR and ENDOR spectrometer

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Fi. 2 Bruker Elexsys 780 system 263 GHz / 12 T EPR/ENDOR spectrometer

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Fig. 3 FD-FT THz-EPR set-up