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Volume 7
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10.3390/photonics7030068
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Letter

Demonstration of Planar Type-II Superlattice-Based Photodetectors Using Silicon Ion-Implantation

by
Arash Dehzangi
,
Donghai Wu
,
Ryan McClintock
,
Jiakai Li
,
Alexander Jaud
and
Manijeh Razeghi
*
Center for Quantum Devices, Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208, USA
*
Author to whom correspondence should be addressed.
Photonics 2020, 7(3), 68; https://doi.org/10.3390/photonics7030068
Submission received: 8 August 2020 / Revised: 31 August 2020 / Accepted: 1 September 2020 / Published: 3 September 2020
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Abstract

In this letter, we report the demonstration of a pBn planar mid-wavelength infrared photodetectors based on type-II InAs/InAs1−xSbx superlattices, using silicon ion-implantation to isolate the devices. At 77 K the photodetectors exhibited peak responsivity of 0.76 A/W at 3.8 µm, corresponding to a quantum efficiency, without anti-reflection coating, of 21.5% under an applied bias of +40 mV with a 100% cut-off wavelength of 4.6 µm. With a dark current density of 5.21 × 10−6 A/cm2, under +40 mV applied bias and at 77 K, the photodetector exhibited a specific detectivity of 4.95 × 1011 cm·Hz1/2/W.
Keywords: planar structure; ion implantation; type II superlattice; quantum efficiency; implantation energy planar structure; ion implantation; type II superlattice; quantum efficiency; implantation energy
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MDPI and ACS Style

Dehzangi, A.; Wu, D.; McClintock, R.; Li, J.; Jaud, A.; Razeghi, M. Demonstration of Planar Type-II Superlattice-Based Photodetectors Using Silicon Ion-Implantation. Photonics 2020, 7, 68. https://doi.org/10.3390/photonics7030068

AMA Style

Dehzangi A, Wu D, McClintock R, Li J, Jaud A, Razeghi M. Demonstration of Planar Type-II Superlattice-Based Photodetectors Using Silicon Ion-Implantation. Photonics. 2020; 7(3):68. https://doi.org/10.3390/photonics7030068

Chicago/Turabian Style

Dehzangi, Arash, Donghai Wu, Ryan McClintock, Jiakai Li, Alexander Jaud, and Manijeh Razeghi. 2020. "Demonstration of Planar Type-II Superlattice-Based Photodetectors Using Silicon Ion-Implantation" Photonics 7, no. 3: 68. https://doi.org/10.3390/photonics7030068

APA Style

Dehzangi, A., Wu, D., McClintock, R., Li, J., Jaud, A., & Razeghi, M. (2020). Demonstration of Planar Type-II Superlattice-Based Photodetectors Using Silicon Ion-Implantation. Photonics, 7(3), 68. https://doi.org/10.3390/photonics7030068

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