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Towards a Graphene-Based Low Intensity Photon Counting Photodetector

Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK
Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, UK
Author to whom correspondence should be addressed.
Academic Editor: David Stoppa
Sensors 2016, 16(9), 1351;
Received: 19 February 2016 / Revised: 15 July 2016 / Accepted: 15 August 2016 / Published: 23 August 2016
(This article belongs to the Special Issue Photon-Counting Image Sensors)
PDF [6232 KB, uploaded 23 August 2016]


Graphene is a highly promising material in the development of new photodetector technologies, in particular due its tunable optoelectronic properties, high mobilities and fast relaxation times coupled to its atomic thinness and other unique electrical, thermal and mechanical properties. Optoelectronic applications and graphene-based photodetector technology are still in their infancy, but with a range of device integration and manufacturing approaches emerging this field is progressing quickly. In this review we explore the potential of graphene in the context of existing single photon counting technologies by comparing their performance to simulations of graphene-based single photon counting and low photon intensity photodetection technologies operating in the visible, terahertz and X-ray energy regimes. We highlight the theoretical predictions and current graphene manufacturing processes for these detectors. We show initial experimental implementations and discuss the key challenges and next steps in the development of these technologies. View Full-Text
Keywords: graphene; single photon; photodetector; visible; terahertz; cryogenic; X-ray graphene; single photon; photodetector; visible; terahertz; cryogenic; X-ray

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Williams, J.O.D.; Alexander-Webber, J.A.; Lapington, J.S.; Roy, M.; Hutchinson, I.B.; Sagade, A.A.; Martin, M.-B.; Braeuninger-Weimer, P.; Cabrero-Vilatela, A.; Wang, R.; De Luca, A.; Udrea, F.; Hofmann, S. Towards a Graphene-Based Low Intensity Photon Counting Photodetector. Sensors 2016, 16, 1351.

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