Ultrafast Field-Emission Electron Sources Based on Nanomaterials

Shenghan Zhen, Ke Chen, Matthew Cole, Zhenjun Li, Jun Chen, Chi Li, Qing Dai

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The search for electron sources with simultaneous optimal spatial and temporal resolution has become an area of intense activity for a wide variety of applications in the emerging fields of lightwave electronics and attosecond science. Most recently, increasing efforts are focused on the investigation of ultrafast field‐emission phenomena of nanomaterials, which not only are fascinating from a fundamental scientific point of view, but also are of interest for a range of potential applications. Here, the current state‐of‐the‐art in ultrafast field‐emission, particularly sub‐optical‐cycle field emission, based on various nanostructures (e.g., metallic nanotips, carbon nanotubes) is reviewed. A number of promising nanomaterials and possible future research directions are also established.
Original languageEnglish
Article number1805845
Pages (from-to)1-14
Number of pages14
JournalAdvanced Materials
Issue number45
Early online date6 Feb 2019
Publication statusPublished - 8 Nov 2019


  • carbon nanotubes
  • field emission
  • graphene
  • lightwave electronics
  • optical field emission
  • ultrafast electron sources

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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