UGC-DAE Consortium for Scientific Research
( An Autonomous Institution of University Grants Commission, New Delhi )
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Dielectric Relaxation Spectroscopy
Dr. S. K. Deshpande
Broadband Dielectric Spectrometer:
  • Novocontrol Alpha AN impedance analyzer with Quatro cryosystem for dielectric studies
  • Frequency range: 3microhertz to 20megahertz
  • Temperature range: -160C to +400C with nitrogen gas cooling/heating
  • Impedance range: 0.01 ohms to 1014 ohms
  • Sample holder: BDS 1200 with ZG4 2-, 3-, and 4-wire interface; custom-built liquid sample cell
  • Sample type: solid samples in the form of pellets or foils, non-volatile liquids also possible
  • Computer-controlled data acquisition
Ferroelectric Test System for thin films:
  • Aixacct EasyCheck 300 ferroelectric test system
  • Measuements: P-E hysteresis, leakage current and fatigue in thin film samples at ambient temperature
  • Max. voltage: 125V
  • Frequency range: 1Hz to 250Hz
  • Thin film sample holder with micropositioning