Broadband staircase quantum well infrared photodetector: working in long wavelength infrared range (LWIR)

Hostut M., Kartal D., Ergun Y., Sokmen I.

International Conference on Superlattices, Nano-Structures and Nano-Devices, İstanbul, Turkey, 30 July - 04 August 2006, vol.4, pp.607-608 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 4
  • Doi Number: 10.1002/pssc.200673278
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.607-608
  • Anadolu University Affiliated: Yes


We present a theoretical investigation of a staircase-like quantum well infrared photodetector (QWIP). it detects wavelength between 7.6 mu m and 13.5 mu m range at an applied electric field of F = 1.9x10(4) V/cm at 77 K. The dark current density was found to be around 2x10(-7) A/cm(2) at operating bias, which is lower than the conventional QWIPs in the literature. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.