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Study of a backgated metal-semiconductor-metal photodetector

Vickers, AJ and Hassan, MA and Mashakekhi, HR and Griguoli, A and Hopkinson, M (1995) 'Study of a backgated metal-semiconductor-metal photodetector.' Applied Physics Letters. 815 - ?. ISSN 0003-6951

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Abstract

In this letter we outline our results on a new type of high-speed photodetector [E. Gregor , Appl. Phys. Lett. 65, 2223 (1994)]. The device is based on the hybridization of a metal-semiconductor-metal photodetector and a p-i-n photodiode. The advantage of the device, which operates in the transit-time limited regime, is that it removes the hole current from the high-speed circuit through a third contact, and hence, increases the response speed of the device. In contrast to the previously published work [E. Gregor , Appl. Phys. Lett. 65, 2223 (1994)] we have used an excitation pulse that is much faster than the device response in order to fully investigate the effect of the third contact. We observe significantly more effect on the response once the third contact is connected with a subsequent increase of device response speed with increasing application of bias to this third contact. © 1996 American Institute of Physics.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Jim Jamieson
Date Deposited: 26 Jul 2017 19:07
Last Modified: 30 Jan 2019 16:16
URI: http://repository.essex.ac.uk/id/eprint/19269

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