Infrared multispectral detection using Si/SixGe1-x quantum well infrared photodetectors

D. Krapf; B. Adoram; J. Shappir; A. Sa'ar; S. G. Thomas; J. L. Liu; K. L. Wang

doi:10.1063/1.1343498

Infrared multispectral detection using Si/Si_xGe_1-x quantum well infrared photodetectors

D. Krapf^*, B. Adoram, J. Shappir, A. Sa'ar, S. G. Thomas, J. L. Liu, K. L. Wang

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

A modified p-type Si/SiGe quantum well infrared photodetector for multispectral infrared imaging applications is demonstrated. In order to improve the detector's performances we have used a SiGe emitter and a low-temperature wet passivation process that give rise to a reduced dark current, even at relatively high bias voltages. Multispectral photoresponse at the long, mid and short wavelength infrared atmospheric windows was observed. The response peaks are assigned to the various classes of intervalence band transitions in the quantum wells and in the SiGe emitter layers.

Original language	English
Pages (from-to)	495-497
Number of pages	3
Journal	Applied Physics Letters
Volume	78
Issue number	4
DOIs	https://doi.org/10.1063/1.1343498
State	Published - 22 Jan 2001

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abstract = "A modified p-type Si/SiGe quantum well infrared photodetector for multispectral infrared imaging applications is demonstrated. In order to improve the detector's performances we have used a SiGe emitter and a low-temperature wet passivation process that give rise to a reduced dark current, even at relatively high bias voltages. Multispectral photoresponse at the long, mid and short wavelength infrared atmospheric windows was observed. The response peaks are assigned to the various classes of intervalence band transitions in the quantum wells and in the SiGe emitter layers.",

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AU - Krapf, D.

AU - Adoram, B.

AU - Shappir, J.

AU - Sa'ar, A.

AU - Thomas, S. G.

AU - Liu, J. L.

AU - Wang, K. L.

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N2 - A modified p-type Si/SiGe quantum well infrared photodetector for multispectral infrared imaging applications is demonstrated. In order to improve the detector's performances we have used a SiGe emitter and a low-temperature wet passivation process that give rise to a reduced dark current, even at relatively high bias voltages. Multispectral photoresponse at the long, mid and short wavelength infrared atmospheric windows was observed. The response peaks are assigned to the various classes of intervalence band transitions in the quantum wells and in the SiGe emitter layers.

AB - A modified p-type Si/SiGe quantum well infrared photodetector for multispectral infrared imaging applications is demonstrated. In order to improve the detector's performances we have used a SiGe emitter and a low-temperature wet passivation process that give rise to a reduced dark current, even at relatively high bias voltages. Multispectral photoresponse at the long, mid and short wavelength infrared atmospheric windows was observed. The response peaks are assigned to the various classes of intervalence band transitions in the quantum wells and in the SiGe emitter layers.

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Infrared multispectral detection using Si/Si_xGe_1-x quantum well infrared photodetectors

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