Wang Lu, Yang Jing, Zhu Hongyu, Li Wenhao, Wen Dianzhong
School of Electronic Engineering, Heilongjiang University, Harbin 150080, China.
HLJ Province Key Laboratory of Senior-Education for Electronic Engineering, Heilongjiang University, Harbin 150080, China.
Nanomaterials (Basel). 2022 Oct 21;12(20):3709. doi: 10.3390/nano12203709.
In this paper, a floating-gate flexible nonvolatile memory is reported that is composed of natural biological materials, namely, silkworm hemolymph, graphene quantum dots as the floating-gate layer, and polymethyl methacrylate (PMMA) as the insulating layer. The device has a high ON/OFF current ratio (4.76 × 106), a low setting voltage (<−1.75 V), and good durability and retention ability. The device has two storage characteristics, namely, Flash and WORM, which can be effectively and accurately controlled by adjusting the limiting current during device setting. The resistance switching characteristics are the result of the formation and fracture of conductive filaments. The floating-gate flexible bioresistive random access memory prepared in this paper provides a new idea for the development of multifunctional and biocompatible flexible memory.
本文报道了一种由天然生物材料构成的浮栅柔性非易失性存储器，即由蚕血淋巴、作为浮栅层的石墨烯量子点以及作为绝缘层的聚甲基丙烯酸甲酯（PMMA）组成。该器件具有高开关电流比（4.76×106）、低设置电压（<−1.75 V）以及良好的耐久性和保持能力。该器件具有两种存储特性，即闪存和一次写入多次读取（WORM），可通过在器件设置期间调整限制电流来有效且精确地控制。电阻切换特性是导电细丝形成和断裂的结果。本文制备的浮栅柔性生物电阻式随机存取存储器为多功能且生物相容的柔性存储器的发展提供了新思路。
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