Biodegradable Natural Pectin-Based Flexible Multilevel Resistive Switching Memory for Transient Electronics
Biodegradable Natural Pectin-Based Flexible Multilevel Resistive Switching Memory for Transient Electronics
复制标题
用于瞬态电子器件的可生物降解的天然果胶柔性多级电阻开关存储器
DOI：
10.1002/smll.201803970
复制
发表时间：
2019
期刊：
影响因子：
13.3
通讯作者：
Yichun Liu
中科院分区：
文献类型：
--
作者：
Jiaqi Xu;Xiaoning Zhao;Haiyang Xu;Haiyang Xu;Junli Hu;Jiangang Ma;Yichun Liu
可以在溶液中物理消失的瞬态电子产品可以为应对快速增长的电子废物带来生态挑战提供机会。作为一个重要的组成部分，除了上述优点之外，还期望结合有瞬态特征的存储器设备也可以被开发为保密信息存储系统。阻变存储器是下一代存储器最有前途的技术之一。本文利用从天然橙子皮中提取的生物相容性果胶制备RS存储器件（Ag/果胶/铟锡氧化物（ITO）），该器件具有良好的RS特性，如形成自由特性、低工作电压（约1.1 V）、快开关速度（104 s）和多级RS行为。器件性能在104次弯曲循环后没有下降，这将有利于柔性存储器应用。此外，由于Ag/果胶/ITO存储器件的羧基离子化，使其具有良好的溶解性，因此可以在10 min内快速溶解于去离子水中，而不用酸性溶液，这在绿色电子领域具有广阔的应用前景。本发明的基于天然果胶的生物相容性存储器器件提出了有希望的材料候选物，以实现高密度安全信息存储系统应用、柔性电子器件和绿色电子器件。
Transient electronics that can physically vanish in solution can offer opportunities to address the ecological challenges for dealing with the rapidly growing electronic waste. As one important component, it is desirable that memory devices combined with the transient feature can also be developed as secrecy information storage systems besides the above advantage. Resistive switching (RS) memory is one of the most promising technologies for next-generation memory. Herein, the biocompatible pectin extracted from natural orange peel is introduced to fabricate RS memory devices (Ag/pectin/indium tin oxides (ITO)), which exhibit excellent RS characteristics, such as forming free characteristic, low operating voltages (≈1.1 V), fast switching speed (104 s), and multilevel RS behaviors. The device performance is not degraded after 104 bending cycles, which will be beneficial for flexible memory applications. Additionally, instead of using acid solution, the Ag/pectin/ITO memory device can be dissolved rapidly in deionized water within 10 min thanks to the good solubility arising from ionization of its carboxylic groups, which shows promising application for green electronics. The present biocompatible memory devices based on natural pectin suggest promising material candidates toward enabling high-density secure information storage systems applications, flexible electronics, and green electronics.