Multi-Terminal Nonwoven Stochastic Memristive Devices Based on Polyamide-6 and Polyaniline for Neuromorphic Computing

Abstract

Reservoir computing systems are promising for application in bio-inspired neuromorphic networks as they allow the considerable reduction of training energy and time costs as well as an overall system complexity. Conductive three-dimensional structures with the ability of reversible resistive switching are intensively developed to be applied in such systems. Nonwoven conductive materials, due to their stochasticity, flexibility and possibility of large-scale production, seem promising for this task. In this work, fabrication of a conductive 3D material by polyaniline synthesis on a polyamide-6 nonwoven matrix was shown. An organic stochastic device with a prospective to be used in reservoir computing systems with multiple inputs was created based on this material. The device demonstrates different responses (output current) when different combinations of voltage pulses are applied to the inputs. The approach is tested in handwritten digit image classification task in simulation with the overall accuracy exceeding 96%. This approach is beneficial for processing multiple data flows within a single reservoir device.

Computing of neuromorphic materials: an emerging approach for bioengineering solutions

“…For practical applications, it is crucial to close the gap between neuromorphic hardware and conventional computing systems. 282–285 The usage of neuromorphic technology in practical applications can be facilitated by integration with already-existing computing architectures, software frameworks, and tools that can enable smooth collaboration between various computing paradigms. Although there are great expectations for neuromorphic hardware, it is important to keep in mind that the technology is still in its infancy and it may take some time before the full potential of these systems is realized.…”

“…For practical applications, it is crucial to close the gap between neuromorphic hardware and conventional computing systems. [282][283][284][285] The usage of neuromorphic technology in practical applications can be facilitated by…”

Modulation of polyaniline memristive device switching voltage by nucleotide-free analogue of vitamin B12

“…Organic memristive devices and neuromorphic transistors are of special interest due to their unique set of characteristics, including relatively low operational voltage, mechanical flexibility, softness of devices, biocompatibility of materials, and ability to form three-dimensional structures [14][15][16][17]. In addition, they enable a variety of fabrication and processing techniques, ranging from spray-coating to inkjet and 3D printing, allowing fast and cost-effective production of devices [18][19][20][21].…”