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Fabrication and characterization of an InAs0.96Sb0.04 photodetector for MIR applications. .

Chakrabarti, P. and Krier, A. and Huang, X. L. and Fenge, P. (2004) Fabrication and characterization of an InAs0.96Sb0.04 photodetector for MIR applications. . IEEE ELECTRON DEVICE LETTERS, 25 (5). pp. 283-285. ISSN 0741-3106

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Abstract

In this letter, we report an InAsSb p(+)-n junction photodetector grown on InAs substrate by liquid phase epitaxy. Electrical and optical characterizations of the device have been carried out at room temperature for operation of the device in the mid-infrared region. The study revealed that the dark current of the photodetector under reverse bias is dominated by a trap-assisted tunnelling current component, which degrades the detectivity of the device. Further, by operating the device at a suitable low reverse bias it is possible to improve the room-temperature detectivity significantly as compared to its value at zero bias.

Item Type: Article
Journal or Publication Title: IEEE ELECTRON DEVICE LETTERS
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 4428
Deposited By: Dr Susan E. Krier
Deposited On: 13 Mar 2008 10:23
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 18:10
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/4428

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