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Issue Eur. Phys. J. Appl. Phys.
Volume 46, Number 2, May 2009
Article Number 20301
Number of page(s) 4
Section Semiconductors and Devices
DOI 10.1051/epjap/2009042
Published online 27 March 2009

Eur. Phys. J. Appl. Phys. 46, 20301 (2009)
DOI: 10.1051/epjap/2009042

Concept of new photodetector based on single electron transistor for single charge detection

M. Troudi1, N. Sghaier1, 2, A. Kalboussi1 and A. Souifi3

1  Laboratoire de Microélectronique et Instrumentation, UR/03/13-04, Faculté des Sciences de Monastir, Avenue de l'Environnement, 5019 Monastir, Tunisia
2  Équipe composants électroniques, UR/99/13-22, Institut Préparatoire aux Études d'Ingénieurs de Nabeul (IPEIN), 8000 Merazka, Nabeul, Tunisia
3  Institut des Nanotechnologies de Lyon, Site INSA UMR 5270, Bât. Blaise Pascal, 7 av. Jean Capelle, 69621 Villeurbanne Cedex, France

manel.troudi@ipein.rnu.tn

Received: 11 December 2008 / Accepted: 19 January 2009 / Published online: 27 March 2009

Abstract
In this paper, we present a model proposition of photo-SET (single electron photo-detector) aiming at detecting one by one electrons. In the first part of this work, we present the two blocs of the proposed photo-SET (reading and detection blocs). The device structure presented is consisting of two SETs capacitively coupled. In this model, the first SET (SET1) is supposed to read the charge whereas the detection bloc is represented by the second SET (SET2). In the second part, we investigate the effects of photoexcitation on Id-Vg curves and we present results obtained on the output photo-SET characteristics after variation of power illumination and response time.

PACS
85.60.Bt - Optoelectronic device characterization, design, and modeling.
85.35.Gv - Single electron devices.

© EDP Sciences 2009


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