Latest improvements on long wave p on n HgCdTe technology at Sofradir

Rubaldo, L.; Taalat, R.; Berthoz, Jocelyn; Maillard, Magalie; Péré‐Laperne, Nicolas; Brunner, A.; Guinedor, Pierre; Dargent, L.; Manissadjian, Alain; Reibel, Yann; Kerlain, A.

doi:10.1117/12.2264606

Cited by 6 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main commercial high performance cooled detector systems currently available, made of quantum well infrared photodetectors (QWIP), mercury cadmium telluride (MCT) and type-II superlattice (T2SL) technologies, are mainly limited to the near LWIR domain, up to 10 μm [1][2][3][4]. However, considering an ideal blackbody at 300 K, without any IR system or transparency window considerations, the power emitted per unit area at the surface of the blackbody in the near LWIR range (8-10 μm) corresponds to only 35% of the total power emission in the full LWIR (8-14 μm) range.…”

Section: Introductionmentioning

confidence: 99%

Opto-Electronics Review

Alchaar,

Rodriguez,

Höglund

et al. 2020

View full text Add to dashboard Cite

In this paper, we present the electrical and electro-optical characterizations of an InAs/GaSb type-2 superlattice barrier photodetector operating in the full longwave infrared spectral domain. The fabricated detectors exhibited a 50% cut-off wavelength around 14 μm at 80 K and a quantum efficiency slightly above 20%. The dark current density was of 4.6 × 10 -2 A/cm 2 at 80 K and a minority carrier lateral diffusion was evaluated through dark current measurements on different detector sizes. In addition, detector spectral response, its dark current-voltage characteristics and capacitance-voltage curve accompanied by electric field simulations were analyzed in order to determine the operating bias and the dark current regimes at different biases. Finally, dark current simulations were also performed to estimate a minority carrier lifetime by comparing experimental curves with simulated ones.

show abstract

Section: Introductionmentioning

confidence: 99%