Foldable and Disposable Memory on Paper

Abstract

Foldable organic memory on cellulose nanofibril paper with bendable and rollable characteristics is demonstrated by employing initiated chemical vapor deposition (iCVD) for polymerization of the resistive switching layer and inkjet printing of the electrode, where iCVD based on all-dry and room temperature process is very suitable for paper electronics. This memory exhibits a low operation voltage of 1.5 V enabling battery operation compared to previous reports and wide memory window. The memory performance is maintained after folding tests, showing high endurance. Furthermore, the quick and complete disposable nature demonstrated here is attractive for security applications. This work provides an effective platform for green, foldable and disposable electronics based on low cost and versatile materials.

Fast, Highly Flexible, and Transparent TaOx-Based Environmentally Robust Memristors for Wearable and Aerospace Applications

“…We found that the IL reduces the surface roughness of the TaO x and enhances the interface quality at the bottom interface layer (Figure S6); thus, improving the durability of the device. 49 Moreover, the insertion of the AlN layer also improves the adhesion of the films; we conducted a peeling test using a scotch tape, and the result shows that the AlN has better mechanical adhesion on the ITO substrate than TaO x (Figure S7). In order to further assess the feasibility of the DL device for wearable electronics that may not only be used in indoor environments but also outdoors, the UV stability of the device would be investigated.…”

All-Printed Paper-Based Micro-supercapacitors Using Water-Based Additive-Free Oxidized Single-Walled Carbon Nanotube Pastes

“…Paper is an intimate and ubiquitous material in our daily activities. In recent years, paper has been considered to be cheap; thus, it is a promising substrate for flexible electronics. , Paper-based flexible devices are gaining increasing attention as cost-effective, eco-friendly, lightweight, and disposable electronics for wearable applications. − For decades, there have been many studies on the integration of electronic components, such as interconnections, transistors, diodes, inductors, memories, sensors, and energy harvesting/storage devices into paper substrates. − Moreover, origami- and kirigami-inspired device structuring can allow the fabrication of ultra-stretchable paper-based electronics exhibiting a stretchability of over 1000%. − …”

The potential of paper-based diagnostics to meet the ASSURED criteria

“…Paper-based, foldable and disposable memory with a low voltage operation of 1.5 V has been shown, 101 which would allow for on-board battery operation if integrated as part of an ASSURED paper-based device. Additionally, memory performance was maintained up to 100 s of switching cycles after folding tests were carried out, showing robust and repeatable characteristics that align well with the ASSURED principles.…”