Effects of a nanocomposite carbon buffer layer on the field emission properties of multiwall carbon nanotubes and nanofibers grown by hot filament chemical vapor deposition

Abstract

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Direct Deposition of Bamboo‐Like Carbon Nanotubes on Copper Substrates by Sulfur‐Assisted HFCVD

“…The Fowler-Nordheim (F-N) plots (see Figures 4(c) and 4(d)) show two distinctive linear regions: one on the high-electric field region (located at the left side of the plot) and the other on the low-electric field region (located at the right side of the plot). These two regions featured in F-N plots appear in field emission data from various materials, including diamond-like carbon films and carbon nanotubes [33,37]. It was shown by Xu et al [53] that this feature is not caused by adsorbates and that it could be caused by space charge effects [54].…”

“…Bamboo-like carbon nanostructures resemble zigzag carbon nanotubes capped with a plain graphene sheet [32]. Recently, we have synthesized multiwalled carbon nanotubes and nanofibres on molybdenum substrates [33]. Carbon-based films have been considered as potential materials for field emission (FE) devices, such as FE displays and micro X-ray sources because of their unique properties and characteristics: relatively low-threshold field, robustness, chemical inertness, radiation hardness, and ease of production.…”

SiN/bamboo like carbon nanotube composite electrodes for lithium ion rechargeable batteries

“…5b) show two distinctive linear regions for BCNTs: one on the high-electric field region (located at the left side of the plot) and the other on the low-electric field region (located at the right side of the plot). These two regions featured in F-N plots appear in field emission data from various materials, including diamond-like carbon films and carbon nanotubes [17,18]. Liao et al [19] while studying field emission from diamond films proposed that this feature is caused by the quantum tunneling of the electrons through multiple barriers caused by the presence of different materials or structures.…”

Porous silicon for field emission display applications

“…For the development of the FED prototype, the carbon nanofibers [17] were deposited on polished Cu substrates in a custom-built HFCVD system. A gas mixture of 2% CH 4 :H 2 and 500 ppm of H 2 S was used with a total flow rate of 100 sccm.…”