Biodegradable Natural Pectin‐Based Flexible Multilevel Resistive Switching Memory for Transient Electronics

Abstract

above advantage. [9,10] Resistive switching (RS) memories are highly promising candidates for next-generation nonvolatile memories owing to their high storage density, fast switching speed, and low power consumption. [11][12][13][14][15] Recently, some biomaterials have also been explored as an attractive building blocks for RS memories, such as pectin, [16] protein, [17] and chitosan, [18] etc. Among these materials, pectin holds the advantages of good solubility and fast metal ions transport. 1) For pectin, the ionization of carboxylic groups can promote the formation of hydrogen bonds; water molecules can easily penetrate into the pectin molecules which could facilitate the fast dissolution of pectin. [19,20] 2) Pectin includes functional groups such as COC and COH, and metal ions can migrate by interacting with these functional groups. [21,22] Hence, pectin can act as an ionic conductor enabling fast Ag ions migration, which could be desirable for developing RS memory. Recently, Sun et al. [16] have developed a memory device using pectin with reproductive RS characteristics. However, the transient behaviors of the memory still need study. In another aspect, there always exists particular research attention to develop flexible and multilevel memory devices to meet the increasing demands for high-density information storage in flexible electronic systems. Although the multilevel RS has been observed in many oxide systems, there are only few literatures reporting multilevel RS with natural biomaterials. [23] In this work, we present for the first time a flexible and multilevel RS memory with pectin extracted from natural orange peel. The devices exhibit excellent RS characteristics and the related mechanism is investigated by conducting atomic force microscopy (C-AFM) and temperature-dependent resistance measurement. In addition to their significant performance, such devices can be dissolved in deionized (DI) water rapidly accompanied by the failure of the RS properties. www.advancedsciencenews.com

Memristors with organic‐inorganic halide perovskites

“…Digital‐type memristors (which is also termed as resistive random access memory) operate with reversible RS behavior between multiple discrete states. The inherent memory effect of this type memristors can be developed as nonvolatile memory for information storage, where the stored information is represented by different resistance states (such as a high resistance state (HRS) and a low resistance state (LRS)) . To be applied as next‐generation memory, SET/RESET voltages ( V SET / V RESET ), HRS/LRS ratio, endurance, retention, and power consumption are critical characteristics.…”

“…The inherent memory effect of this type memristors can be developed as nonvolatile memory for information storage, where the stored information is represented by different resistance states (such as a high resistance state (HRS) and a low resistance state (LRS)). [64][65][66][67][68] To be applied as next-generation memory, SET/RESET voltages (V SET /V RESET ), HRS/LRS ratio, endurance, retention, and power consumption are critical characteristics. At present, some companies have started to promote the production of RRAM products.…”

“…The OHP-based memristors show low V SET /V RESET , high HRS/LRS ratio, and long retention time. However, compared with high performance metal oxides-based memristors, [64][65][66][67][68] the endurance characteristics and power consumption of the OHPs-based memristors should be improved for further practical memory applications. In addition, some effective methods that have been carried out previously to improve the memristive performances would also applicable in OHPs-based memristors, such as embedding metal clusters, [120][121][122] introducing porous layer, [123][124][125][126] and doping, [127][128][129] and so on.…”

Biomemristic Behavior for Water-Soluble Chitosan Blended with Graphene Quantum Dot Nanocomposite

“…They provide these devices with environmental benignity, high performance and large-scale fabrication capability at low cost. The nature of biomaterials paves the way for next-generation ultrahigh density and high-speed green data storage devices [8][9][10][11].…”

Fully transient electrochemical testing strips for eco-friendly point of care testing

“…5 Polymers (e.g., silk broin, 10 poly(lactic-co-glycolic acid) (PLGA), 11 poly(vinyl alcohol) (PVA), 12 poly(caprolactone) (PCL), 13 polyvinylpyrrolidone (PVP), 14 etc. ), water-soluble sodium carboxymethyl cellulose (Na-CMC) 15 and natural materials [16][17][18] (e.g., egg albumen, natural pectin, natural wax) have been reported to serve as substrates or encapsulation layers of transient electronics. Even some dielectric materials such as SiO 2 and Si 3 N 4 can be used for encapsulation.…”