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2.5-µm InGaAs photodiodes grown on GaAs substrates by interfacial misfit array technique

Jurczak, P; Sablon, KA; Gutiérrez, M; Liu, H; Wu, J; (2017) 2.5-µm InGaAs photodiodes grown on GaAs substrates by interfacial misfit array technique. Infrared Physics & Technology , 81 pp. 320-324. 10.1016/j.infrared.2017.02.001. Green open access

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Abstract

In0.85Ga0.15As photodetectors grown on GaAs substrates using an interfacial misfit array-based simple buffer are studied. The material quality is assessed with a range of characterization tools showing low surface roughness and low density of threading dislocations. These results indicate a significant improvement on crystal quality compared to structures grown on InP substrates by using metamorphic buffers. Quantum efficiency and responsivity measurements show good performance of the fabricated devices between 1.5 and 2.5 µm, making them highly suitable for short-wavelength infrared applications.

Type: Article
Title: 2.5-µm InGaAs photodiodes grown on GaAs substrates by interfacial misfit array technique
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.infrared.2017.02.001
Publisher version: http://doi.org/10.1016/j.infrared.2017.02.001
Language: English
Additional information: Copyright © 2017. This manuscript version is published under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International licence (CC BY-NC-ND 4.0). This licence allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Further details about CC BY licences are available at http://creativecommons.org/licenses/by/4.0. Access may be initially restricted by the publisher.
Keywords: Infrared, Photodiodes, Epitaxy, Interfacial misfit array, Short-wavelength
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1541016
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