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Electrical characteristics and carrier transport mechanisms of write-once-read-many-times memory elements based on graphene oxide diodes

  • Mingdong Yi
  • , Litao Zhao
  • , Quli Fan
  • , Xianhai Xia
  • , Wei Ai
  • , Linghai Xie
  • , Xiangmei Liu
  • , Naien Shi
  • , Wenjun Wang
  • , Yanping Wang
  • , Wei Huang
  • Nanjing University of Posts and Telecommunications
  • Liaocheng University
  • University of Chinese Academy of Sciences

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

We demonstrated write-once-read-many-times (WORM) memory devices based on graphene oxide (GO) film sandwiched between ITO and LiF/Al electrode. The devices showed irreversible electrical transition from the low conductivity (OFF) state to the high conductivity (ON) state and the ON/OFF current ratio between the conductivities of two states was over 5.7 × 104. The results of I-V data, AFM and SEM images indicated that the WORM memory characteristics of GO diodes were mainly attributed to charge trapping at GO layers and interfacial properties between GO and LiF/Al electrode.

Original languageEnglish
Article number063709
JournalJournal of Applied Physics
Volume110
Issue number6
DOIs
StatePublished - 15 Sep 2011
Externally publishedYes

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