InAs/GaSb Superlattice Photodiodes Operating in the Midwave Infrared Range

P. Christol, R. Taalat, C. Cervera, H. Aït-Kaci, M. Delmas, J. B. Rodriguez, E. Giard, I. Ribet-Mohamed


This communication reports on InAs/GaSb superlattice (SL) pin photodiodes. The SL structures, fabricated by molecular beam epitaxy (MBE), are made of symmetrical and asymmetrical period designs adapted for the Midwave Infrared (MWIR) domain, with cut-off wavelength near 5µm at 77K. The structures are studied in terms of dark current-voltage measurements. Comparison of results revealed the predominance of the asymmetric SL design with dark current densities J = 4x10-8A/cm2 at 77K for Vbias = -50mV and R0A product equal to 1.5x106.cm2 at 77K, one order of magnitude higher than the symmetric SL structures. Such result demonstrates the strong influence of the period on the electrical properties of SL MWIR photodiodes.


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Paper Citation

in Harvard Style

Christol P., Taalat R., Cervera C., Aït-Kaci H., Delmas M., Rodriguez J., Giard E. and Ribet-Mohamed I. (2013). InAs/GaSb Superlattice Photodiodes Operating in the Midwave Infrared Range . In Proceedings of the International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-8565-44-0, pages 91-95. DOI: 10.5220/0004222600910095

in Bibtex Style

author={P. Christol and R. Taalat and C. Cervera and H. Aït-Kaci and M. Delmas and J. B. Rodriguez and E. Giard and I. Ribet-Mohamed},
title={InAs/GaSb Superlattice Photodiodes Operating in the Midwave Infrared Range},
booktitle={Proceedings of the International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},

in EndNote Style

JO - Proceedings of the International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - InAs/GaSb Superlattice Photodiodes Operating in the Midwave Infrared Range
SN - 978-989-8565-44-0
AU - Christol P.
AU - Taalat R.
AU - Cervera C.
AU - Aït-Kaci H.
AU - Delmas M.
AU - Rodriguez J.
AU - Giard E.
AU - Ribet-Mohamed I.
PY - 2013
SP - 91
EP - 95
DO - 10.5220/0004222600910095