Input/output pulse operation of ZnO nanowire threshold integrators

Integrating more functionality into individual nano-components is a key step to exploit alternative architectures for energy-efficient computation, such as, for instance, neuromorphic computing. Here, we show how to configure ZnO nanowire field-effect transistors as light pulse integrators with prog...

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Bibliographic Details
Published inNanotechnology Vol. 22; no. 2; p. 025207
Main Authors White, Richard, Colli, Alan, Li, Hongwei, Kivioja, Jani
Format Journal Article
LanguageEnglish
Published England IOP Publishing 14.01.2011
Subjects
Nanowires - chemistry
Nanowires - ultrastructure
Temperature
Transistors, Electronic
Ultraviolet Rays
Zinc Oxide - chemistry
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Summary:Integrating more functionality into individual nano-components is a key step to exploit alternative architectures for energy-efficient computation, such as, for instance, neuromorphic computing. Here, we show how to configure ZnO nanowire field-effect transistors as light pulse integrators with programmable threshold. We demonstrate that these single-component devices can be operated as both synchronous and asynchronous neuron-like structures, where the firing threshold and the form of the output signal, either step-like or spiked, can be controlled by using several operational parameters, including the environment in which the device operates. A detailed study showing how environmental variables, such as relative humidity, ambient light and temperature, affect device operation is presented.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/22/2/025207