Jiang Tongfen, Meng Xianghao, Zhou Zhe, Wu Yueyue, Tian Zhihui, Liu Zhengdong, Lu Gang, Eginlidil Mustafa, Yu Hai-Dong, Liu Juqing, Huang Wei
Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
Nanoscale. 2021 Jan 14;13(2):724-729. doi: 10.1039/d0nr05858k. Epub 2021 Jan 4.
Biocompatible materials have received increasing attention as one of the most important building blocks for flexible and transient memories. Herein, a fully biocompatible resistive switching (RS) memory electronic composed of a carbon dot (CD)-polyvinyl pyrrolidone (PVP) nanocomposite and a silver nanowire (Ag NW) network buried in a flexible gelatin film is introduced with promising nonvolatile RS characteristics for flexible and transient memory applications. The fabricated device exhibited a rewritable flash-type memory behavior, such as low operation voltage (≈-1.12 V), high ON/OFF ratio (>10), long retention time (over 10 s), and small bending radius (15 mm). As a proof of degradability, this transient memory can dissolve completely within 90 s after being immersed into deionized water at 55 °C; it can decompose naturally in soil within 6 days. This fully biocompatible memory electronic paves a novel way for flexible and wearable green electronics.
生物相容性材料作为柔性和瞬态存储器最重要的组成部分之一，受到了越来越多的关注。在此，介绍了一种完全生物相容的电阻式开关（RS）存储器电子器件，它由碳点（CD）-聚乙烯吡咯烷酮（PVP）纳米复合材料和埋在柔性明胶膜中的银纳米线（Ag NW）网络组成，具有用于柔性和瞬态存储器应用的有前景的非易失性RS特性。所制备的器件表现出可重写的闪存型存储行为，如低工作电压（≈-1.12 V）、高开关比（>10）、长保持时间（超过10 s）和小弯曲半径（15 mm）。作为可降解性的证明，这种瞬态存储器在55°C下浸入去离子水中90 s内可完全溶解；它可以在6天内在土壤中自然分解。这种完全生物相容的存储器电子器件为柔性和可穿戴绿色电子器件开辟了一条新途径。
