Extremely low-power consumption nano-RTD photodetectors for future neuromorphic computing

Al-Taai, Q. R. A. , Al-Khalidi, A. , Wang, J., Romeira, B., Figueiredo, J. and Wasige, E. (2021) Extremely low-power consumption nano-RTD photodetectors for future neuromorphic computing. 44th Workshop on Compound Semiconductor Devices and Integrated Circuits held in Europe (WOCSDICE), Bristol, UK, 14-17 Jun 2021.

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This paper describes the fabrication of nanometre-sized resonant tunnelling diode (RTD) photodetector devices which may be used as excitable neuromorphic spike generators. Submicron diameter devices have been fabricated and exhibit peak currents under 250 A, peak and valley voltages of around 0.6 V and 0.8 V and a peak to valley current ratio of around 2.4. If operated as a spike generator from the valley voltage point, the expected energy consumption will be under 10 fJ per spike. This nanoRTD technology could underpin the development of energy efficient neuromorphic computing.

Item Type:Conference or Workshop Item
Glasgow Author(s) Enlighten ID:Wasige, Professor Edward and Al-Taai, Dr Qusay and Wang, Dr Jue and Al-Khalidi, Dr Abdullah
Authors: Al-Taai, Q. R. A., Al-Khalidi, A., Wang, J., Romeira, B., Figueiredo, J., and Wasige, E.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Copyright Holders:Copyright © The Author(s) 2021
Publisher Policy:Reproduced with the permission of the publisher

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
303977ChipAIEdward WasigeEuropean Commission (EC)828841ENG - Electronics & Nanoscale Engineering