Inkjet-Printed High-Yield, Reconfigurable, and Recyclable Memristors on Paper

TL;DR

This paper presents a sustainable, inkjet-printed paper-based memristor array with high yield, reconfigurability, and low power consumption, suitable for neuromorphic applications and recyclable for eco-friendly electronics.

Contribution

It introduces a novel, environmentally friendly method to fabricate high-yield, reconfigurable memristors on paper using inkjet printing with MoS2 nanoflakes, demonstrating robust performance and recyclability.

Findings

>90% device yield in 16x65 array

>10^5 ON-OFF ratio with <0.5 V switching voltage

50 pW switching power in volatile mode

Abstract

Reconfigurable memristors featuring neural and synaptic functions hold great potential for neuromorphic circuits by simplifying system architecture, cutting power consumption, and boosting computational efficiency. Their additive manufacturing on sustainable substrates offers unique advantages for future electronics, including low environmental impact. Here, exploiting structure-property relationship of MoS2 nanoflake-based resistive layer, we present paper-based, inkjet-printed, reconfigurable memristors. With >90% yield from a 16x65 device array, our memristors demonstrate robust resistive switching, with $>10^5$ ON-OFF ratio and <0.5 V operation in non-volatile state. Through modulation of compliance current, the devices transition into volatile state, with only 50 pW switching power consumption, rivalling state-of-the-art metal oxide-based counterparts. We show device recyclability and stable, reconfigurable operation following disassembly, material collection and re-fabrication. We further demonstrate synaptic plasticity and neuronal leaky integrate-and-fire functionality, with disposable applications in smart packaging and simulated medical image diagnostics. Our work shows a sustainable pathway towards printable, high-yield, reconfigurable neuromorphic devices, with minimal environmental footprint.