• 文献标题:   Low operating voltage resistive random access memory based on graphene oxide-polyvinyl alcohol nanocomposite thin films
  • 文献类型:   Article
  • 作  者:   NGO HT, NGUYEN MTT, DO DP, TRAN KM, TA KHT, PHAN BT, PHAM KN
  • 作者关键词:   graphene oxide, polyvinyl alcohol, resistive switching
  • 出版物名称:   JOURNAL OF SCIENCEADVANCED MATERIALS DEVICES
  • ISSN:   2468-2284 EI 2468-2179
  • 通讯作者地址:   Univ Sci
  • 被引频次:   0
  • DOI:   10.1016/j.jsamd.2020.04.008
  • 出版年:   2020

▎ 摘  要

A high-performance non-volatile memory with low power consumption for long battery life and for large data storage is one of the key requirements of the wearable and other electronic Internet of Things (IoT) devices. In this study, we have fabricated and investigated the resistive switching behavior of an RRAM device using the nanocomposite of polyvinyl alcohol (PVA) and graphene oxide (GO) as the switching layer in a hybrid Ag/PVA-GO/FTO structure. The resistive switching behavior of the hybrid Ag/PVA-GO/FTO device depends on the GO amount in the PVA-GO matrix. The optical analysis depicts the good interaction through the hydrogen bonds between the hydroxyl group (-OH) of PVA and C=O of GO which play an important role in lowering the power consumption (sweeping voltage -0.5 V to +0.5 V, V-SET = -0.28 V, V-RESET = 0.34 V, switching ratio I-ON/I-Off = 10(4)) and switching mechanism of the hybrid Ag/PVA-0.5 wt% GO/FTO device compared to the Ag/PVA/FTO, Ag/GO/FTO and Ag/PVA-1.0 wt% GO/FTO devices. The electrical conduction mechanism is found dominant by the SCLC and the Ohm's law corresponding to the high and low resistance states in which the combination of the trap filling and the delocalization of electrons within it bonding rings switch the device from the high to the low resistance state. (C) 2020 The Authors. Publishing services by Elsevier B.V. on behalf of Vietnam National University, Hanoi.