Variation of Quantum Well Infrared Photodetectors Parameter With an Applied Electric Field

Authors R.P. Singh, D.P. Singh
Department of Physics, Banaras Hindu University, Varanasi-221005, India
Issue Volume 3, Year 2011, Number 1, Part 5
Dates Received 04 February 2011, published online 08 December 2011
Citation R.P. Singh, D.P. Singh, J. Nano- Electron. Phys. 3 No1, 992 (2011)
PACS Number(s) 42.79.Pw
Keywords Quantum well infrared photodetectors, Intersubband electron transitions, Dark current, Responsivity.
A model is presented for the performance of quantum well infrared photodetectors (QWIPs) utilizing intersubband electron transitions and tunneling injection electrons. The dark current and the responsivity are derived as functions of the QWIP parameters, including the number of the QWs and electric field dependent capture probability in an analytical form.

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