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Deep Level Transient Spectroscopy


  • Sula Technologies system (
  • Can perform DLTS (measuring capacitance) or related techniques
  • For high resistivity samples, can full the depletion region using light, and measure capacitance (optical DLTS or ODLTS) or current (photo-induced current transient spectroscopy, PICTS)
  • For ODLTS and PICTS, have 340 nm, 365 nm, and 405 nm diodes for excitation
  • Typical temperatures measured are 80 – 490 K