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Electron field emission from graphene oxide wrinkles

机译:石墨烯氧化物皱纹的电子场发射

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摘要

We report a simple and general solution-based methodology to support reduced graphene oxide layers (rGO) onto micro-spikes engraved on Si to produce high-aspect ratio wrinkles and sharp protrusions. It is observed that as the number of deposited rGO layers is increased the wrinkle density progressively increases complemented by a remarkable folding of graphene sheets at the vicinity of the spike tips. Highly efficient and stable field emission with low turn-on fields was observed, attributed to the local enhancement of the electric field at the wrinkled rGO protrusions. The ability to produce wrinkled graphene from solution could allow large area deposition providing prospects for the development of practical electron sources and advanced devices based on graphene oxide field emitters. The contribution of this hierarchical, hybrid film morphology is evaluated and discussed.
机译:我们报告了一种简单且一般的基于解决方案的方法,以支持在Si上刻刻的微峰值上的氧化石墨氧化物层(RGO)以产生高纵横比皱纹和尖锐突起。 观察到,随着沉积的RGO层的数量增加,皱纹密度逐渐增加,通过尖尖的尖端附近的石墨烯片的显着折叠互补。 观察到具有低开启场的高效和稳定的场发射,归因于皱纹RGO突起的电场局部增强。 从溶液中产生皱纹的石墨烯的能力可以允许大面积沉积提供基于石墨烯氧化物场发射器的实用电子源和先进装置的开发的前景。 评估和讨论该分层的杂交薄膜形态的贡献。

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  • 来源
    《RSC Advances》 |2016年第4期|共6页
  • 作者单位

    Technol Educ Inst TEI Crete Ctr Mat Technol &

    Photon Iraklion 71004 Crete Greece;

    Technol Educ Inst TEI Crete Ctr Mat Technol &

    Photon Iraklion 71004 Crete Greece;

    Technol Educ Inst TEI Crete Ctr Mat Technol &

    Photon Iraklion 71004 Crete Greece;

    Fdn Res &

    Technol Hellas Inst Elect Struct &

    Laser Iraklion 71110 Crete Greece;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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