Biodegradable and flexible i-carrageenan based RRAM with ultralow power consumption  

作　　者：卞景垚 陶冶 王中强 赵晓宁 林亚 徐海阳 刘益春 Jing-Yao Bian;Ye Tao;Zhong-Qiang Wang;Xiao-Ning Zhao;Ya Lin;Hai-Yang Xu;Yi-Chun Liu(Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education,Northeast Normal University,Changchun 130024,China;National Demonstration Center for Experimental Physics Education,Northeast Normal University,Changchun 130024,China)

机构地区：[1]Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education,Northeast Normal University,Changchun 130024,China [2]National Demonstration Center for Experimental Physics Education,Northeast Normal University,Changchun 130024,China

出　　处：《Chinese Physics B》2024年第2期21-27,共7页中国物理B（英文版）

基　　金：supported financially by the National Key Research and Development Program of China(Grant No.2023YFB4402301);the National Science Fund for Distinguished Young Scholars(Grant No.52025022);the National Natural Science Foundation of China(Grant Nos.U19A2091,62004016,51732003,52072065,11974072,52372137,and 52272140);the“111”Project(Grant No.B13013);the Fundamental Research Funds for the Central Universities(Grant Nos.2412022QD036 and 2412023YQ004);the funding from Jilin Province(Grant Nos.20210201062GX,20220502002GH,20230402072GH,20230101017JC,and 20210509045RQ)。

摘　　要：Transient memories,which can physically disappear without leaving traceable remains over a period of normal operation,are attracting increasing attention for potential applications in the fields of data security and green electronics.Resistive random access memory(RRAM)is a promising candidate for next-generation memory.In this context,biocompatible l-carrageenan(l-car),extracted from natural seaweed,is introduced for the fabrication of RRAM devices(Ag/l-car/Pt).Taking advantage of the complexation processes between the functional groups(C–O–C,C–O–H,et al.)and Ag metal ions,a lower migration barrier of Ag ions and a high-speed switching(22.2 ns for SET operation/26 ns for RESET operation)were achieved,resulting in an ultralow power consumption of 56 fJ.And the prepared Ag/l-car/Pt RRAM devices also revealed the capacities of multilevel storage and flexibility.In addition,thanks to the hydrophilic groups of l-car molecule,the RRAM devices can be rapidly dissolved in deionized(DI)water within 13 minutes,showing excellent transient characteristics.This work demonstrates that l-car based RRAM devices have great potential for applications in secure storage applications,flexible electronics and transient electronics.

关 键 词：RRAM transient electronics i-carrageenan ultralow power consumption 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]