Article Dans Une Revue Journal of Applied Physics Année : 2014

Electrical modeling of InAs/GaSb superlattice mid-wavelength infrared pin photodiode to analyze experimental dark current characteristics

Résumé

Dark current characteristics of 7 Monolayers (ML) InAs/ 4 ML GaSb SL pin photodiodes are simulated using ATLAS software. Using appropriate models and material parameters, we obtain good agreement between the simulated and the experimental dark current curves of photodiodes grown by molecular beam epitaxy. The n-type non-intentionally-doped (nid) SL samples exhibit a dependence of the lifetime with temperature following the $T$−1/2 law, signature of Shockley-Read-Hall (SRH) Generation-Recombination current. We also studied the dependence of the dark current with the absorber doping level. It appears that the absorber doping level must not exceed a value of 2 × 1015 cm-3, above this value the dark current is increasing with increased doping level. However for this doping value, a dark current as low as 5 × 10-9 A/cm2, at 50 mV reverse bias at 77 K can be obtained.

Domaines

Fichier principal
Vignette du fichier
1.4895983.pdf (2.17 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Licence

Dates et versions

hal-01623575 , version 1 (18-10-2024)

Licence

Identifiants

Citer

Marie Delmas, Jean-Baptiste Rodriguez, Philippe Christol. Electrical modeling of InAs/GaSb superlattice mid-wavelength infrared pin photodiode to analyze experimental dark current characteristics. Journal of Applied Physics, 2014, 116 (11), pp.113101. ⟨10.1063/1.4895983⟩. ⟨hal-01623575⟩
127 Consultations
171 Téléchargements

Altmetric

Partager

  • More