Journal
ORGANIC ELECTRONICS
Volume 44, Issue -, Pages 25-31Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2017.02.004
Keywords
Neuron transistors; Solution-processed In-Ga-Zn-O; Spatially-correlated neural behaviors; Orientation identification
Funding
- National Natural Science Foundation of China [61306085, 11334014]
- Fundamental Research Funds for the Central Universities of Central South University [2016zzts227]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1303742] Funding Source: National Science Foundation
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In this paper, ion-gel gated transistors based on solution-processed indium-gallium-zinc-oxide (In-Ga-Zn- O) semiconductors were fabricated. These transistors consisted of a spatial distribution configuration of multi-in-plane gates. Spike pluses applied on multi-in-plane gates are analogy to massive synaptic inputs from various dendritic positions. The basic neuromorphic functions, such as potentiation or depression behaviors, synaptic plasticity and frequency-dependent filtering, were demonstrated in these devices by applied a spiking on an in-plane gate. The output signal of neuromorphic devices is greatly relevant to the gate position-correlated input signal and the spatially-correlated information processing could advance the capacity of neuromorphic performance. Orientation selectivity was a broadly investigated phenomenon. More importantly, by using the spatial summation functions of dendritic integration, the orientation identification was successfully realized in our transistor with multi-in-plane gates. The spatially-correlated neuromorphic devices are exceedingly promising for the neural information processing and sensing. (C) 2017 Elsevier B.V. All rights reserved.
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