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Article Dans Une Revue Journal of Electronic Materials Année : 2014

Improvement of RTS Noise in HgCdTe MWIR Detectors

Résumé

andom telegraph signal (RTS) noise is present in all bands of the infrared spectrum from lambda (c) = 2.5 mu m (short-wavelength infrared) to lambda (c) = 15.75 mu m (very long-wavelength infrared) and decreases the performance of infrared photodetectors. The main features of RTS noise such as the jump amplitude and RTS frequency are defined, and their dependence as a function of focal-plane array (FPA) temperature was measured for all bands of the infrared spectrum. Both of these features comply with a Boltzmann activation law , and their activation energies scale with the bandgap. Comparison of three different HgCdTe mid-wavelength infrared photodetector technologies was also performed, showing that the optimized n-on-p improvement of operability (AOP) and p-on-n high-operating-temperature technologies show a reduced number of pixels exhibiting RTS noise (by about two decades) in comparison with standard n-on-p technology.
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Dates et versions

hal-02013558 , version 1 (11-02-2019)

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Alexandre Brunner, Laurent Rubaldo, V. Destefanis, F. Chabuel, A. Kerlain, et al.. Improvement of RTS Noise in HgCdTe MWIR Detectors. Journal of Electronic Materials, 2014, 43 (8), pp.3060-3064. ⟨10.1007/s11664-014-3217-z⟩. ⟨hal-02013558⟩
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