The University of Southampton

SiGe quantum well infrared photodetectors

Photovoltaics and Energy, Quantum Electronics and Spintronics

As the range and scope of thermal imaging and sensing applications expand quantum well infrared photodetectors (QWIPs) are emerging as a new and important technology. The best known and most widely discussed are the n-type devices based on GaAs/AlGaAs. The combined promise of normal incidence detection, a route to integration and the potential for far-infrared ( >20 micron) detection, with Si/SiGe quantum well and quantum dot infrared photodetectors (QDIPS), provides the motivation behind this challenging projects that will develop SiGe epitaxy still further.

Primary investigator

Secondary investigators

  • nsl
  • pi01r


  • Prof. P. Harrison, EEE, Leeds University
  • Dr M. Halsall, UMIST/Manchester

Associated research groups

  • Nano Research Group
  • Southampton Nanofabrication Centre
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