• 文献标题:   Highly Transparent Dysprosium Oxide-Based RRAM With Multilayer Graphene Electrode for Low-Power Nonvolatile Memory Application
  • 文献类型:   Article
  • 作  者:   ZHAO HB, TU HL, WEI F, DU J
  • 作者关键词:   dysprosium oxide, graphene electrode, resistive switching rs, transparent memory
  • 出版物名称:   IEEE TRANSACTIONS ON ELECTRON DEVICES
  • ISSN:   0018-9383 EI 1557-9646
  • 通讯作者地址:   Gen Res Inst Nonferrous Met
  • 被引频次:   13
  • DOI:   10.1109/TED.2014.2312611
  • 出版年:   2014

▎ 摘  要

A highly transparent resistive random access memory with a configuration of multilayer graphene (MLG)/Dy2O3/indium tin oxide (ITO) structure is demonstrated in this paper. The fabricated device is transparent, with 80% transmittance at 550 nm. The MLG/Dy2O3/ITO device shows unipolar resistance switching with a low operation current (<100 mu A), low operation voltage (<1 V), low power consumption (<100 mu W), high resistance ratio (>10(4)), fast switching speed (<60 ns), reliable data retention, and promising cycle endurance properties (>200 cycles), which makes a step toward the realization of low-power transparent electronics for next-generation nonvolatile memory application. The MLG/Dy2O3/ITO device exhibited typical filamentary-conduction-type resistive random access memory behavior and no forming process is required. High resistance state (HRS) increases with a reduced device area while low resistance state (LRS) is insensitive to the device sizes. Moreover, Raman spectra obtained in pristine state, HRS, and LRS indicate that the lower power consumption of MLG/Dy2O3/ITO device is attributable to the formation of oxygen graphene layers.