Southampton Nanofabrication Centre

Deep Level Transient

The Sula DLTS with Janis Optical Cryostat is a turn-key system for deep level transient spectroscopy which will allow unique electronic characterisation of materials. It has an optical window for photo-induced DLTS and a fast pulse interface. The combination of charge and current transient spectroscopy allows the system to function on both semiconductors and more insulating materials.

  • temperature range minimum from 77K to 600K
  • high sensitivity: Nt/(Nd-Na)<10-5
  • low detection level: Nt<10-8
  • fast capacitance response: t<10-5s
  • narrow filling pulse: t~10-8s