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首页> 外文期刊>Materials Chemistry and Physics >Nonvolatile rewritable memory device based on solution-processable graphene/poly(3-hexylthiophene) nanocomposite
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Nonvolatile rewritable memory device based on solution-processable graphene/poly(3-hexylthiophene) nanocomposite

机译：基于溶液可加工石墨烯/聚（3-己基噻吩）纳米复合材料的非易失性可重写存储器件

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摘要

An electrically bistable device utilizing a nanocomposite of hexadecylamine-functionalized graphene oxide (HDAGO) with poly(3-hexylthiophene) (P3HT) is demonstrated. The device has an ITO/P3HT-HDAG0/A1 sandwich structure, in which the composite film of P3HT-HDAG0 was prepared by simple solution phase mixing of the exfoliated HDAGO monolayers with P3HT matrix and a spin-coating method. The memory device exhibits typical bistable electrical switching behavior and a nonvolatile rewritable memory effect, with a turn-on voltage of about 1.5 V and an ON/OFF-state current ratio of 10~5. Under ambient conditions, both the ON and OFF states are stable under a constant voltage stress or a continuous pulse voltage stress at a read voltage of 1 V. The conduction mechanism is deduced from the modeling of the nature of currents in both states, and the electrical switching behavior can be attributed to the electric-field-induced charge transfer between P3HT and HDAGO nanosheets.
机译：展示了一种电双稳态器件，该器件利用了十六烷基胺官能化氧化石墨烯（HDAGO）与聚（3-己基噻吩）（P3HT）的纳米复合材料。该装置具有ITO / P3HT-HDAG0 / A1夹心结构，其中通过将剥离的HDAGO单层与P3HT基质进行简单的固溶相混合和旋涂方法来制备P3HT-HDAG0的复合膜。该存储器件具有典型的双稳态电开关性能和非易失性可重写存储效应，其开启电压约为1.5 V，开/关状态电流比为10〜5。在环境条件下，在恒定的电压应力或连续的脉冲电压应力下，在读取电压为1 V的情况下，导通和截止状态都是稳定的。导通机制是根据两种状态下电流性质的建模推导得出的。电开关行为可归因于P3HT和HDAGO纳米片之间的电场感应电荷转移。

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  • 来源
    《Materials Chemistry and Physics》 |2013年第3期|626-632|共7页
  • 作者

    Li Zhang; Ye Li; Jun Shi; Gaoquan Shi; Shaokui Cao;

  • 作者单位

    School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, PR China;

    School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, PR China;

    School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, PR China;

    Department of Chemistry, Tsinghua University, Beijing 100084, PR China;

    School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Composite materials; Thin films; Coatings; Galvanometry measurements; Electrical properties;

    机译：复合材料;薄膜;涂料;检流法测量;电性能;

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