Performance analysis of an InAs/GaSb superlattice barrier photodetector covering the full LWIR spectral domain

• Autorzy: Alchaar Rodolphe , Rodriguez Jean-Baptiste , Höglund L. , Naureen Shagufta , Costard Eric , Christol Philippe

Identyfikatory

DOI

10.24425/opelre.2020.134425

• Języki publikacji: EN

Abstrakty

EN

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/cm² 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.

Słowa kluczowe

EN

barrier photodetector; InAs/GaSb type-2 superlattice; long wavelength infrared; performance analysis

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2020
• Tom: Vol. 28, No. 3
• Strony: 164--170
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Alchaar Rodolphe

• IES, Univ. Montpellier, CNRS, Montpellier, France

• https://orcid.org/0000-0002-4734-4957

autor

Rodriguez Jean-Baptiste

• IES, Univ. Montpellier, CNRS, Montpellier, France

• https://orcid.org/0000-0002-1930-1984+

autor

Höglund L.

• IRnova AB, Electrum 236 -C5, SE-164 40 Kista, Sweden

autor

Naureen Shagufta

• IRnova AB, Electrum 236 -C5, SE-164 40 Kista, Sweden

• https://orcid.org/0000-0003-0582-2575

autor

Costard Eric

• IRnova AB, Electrum 236 -C5, SE-164 40 Kista, Sweden

• https://orcid.org/0000-0002-0198-9389

autor

Christol Philippe

• IES, Univ. Montpellier, CNRS, Montpellier, France

• https://orcid.org/0000-0002-5208-204X

Bibliografia

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Uwagi

1. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).

2. This work was partially funded by the French"Investment for the Future" program (EquipEx EXTRA, ANR 11-EQPX-0016) and ESA contract 4000116260/16/NL/BJ.