Synthesis, structure, and field emission properties of sulfur-doped nanocrystalline diamond

Morell, Gerardo; González-Berríos, Adolfo; Weiner, Brad R.; Gupta, Sanju

doi:10.1007/s10854-006-8090-y

Cited by 44 publications

(29 citation statements)

References 60 publications

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“…The macroscopic surface electric field (E S ) on the sample (i.e., cathode) was estimated using the equation: E S ¼ V/d CA , where V is the voltage applied to the anode and d CA is the distance between the anode and the cathode. 10 The distance between the anode and the cathode is adjusted with a micropositioner with an accuracy of 6 2 lm. All the measurements were taken at d CA ¼ 100 lm and at a pressure not greater than 5 Â 10…”

Section: CMmentioning

confidence: 99%

Free standing graphene-diamond hybrid films and their electron emission properties

Varshney

Rao

Guinel

et al. 2011

Journal of Applied Physics

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Free standing graphene-diamond hybrid films have been fabricated using saturated hydrocarbon polymers as seeding material by hot filament chemical vapor deposition technique. The films are characterized with x-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and electron energy loss spectroscopy (EELS). The XRD shows the characteristic diffraction peaks of both diamond and graphene. The Raman spectrum shows the characteristic band of diamond at 1332 cm−1 and D, G, and 2D bands of graphene at 1349, 1592, and 2687 cm−1, respectively. Both SEM and TEM depict the presence of diamond and graphene in the films. The EELS recorded in the carbon K-edge region also shows the signature peaks of diamond and graphene. The free standing hybrid films exhibit a remarkably low turn-on field of about 2.4 V/μm and a high emission current density of 0.1 mA/cm2. Furthermore, emission currents are stable over the period of 7 days. The superior field emission characteristics of the free standing graphene-diamond hybrid films are attributed to the heat sink capability of diamond and high electrical conductivity of graphene.

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Section: CMmentioning

confidence: 99%

Free standing graphene-diamond hybrid films and their electron emission properties

Varshney

Rao

Guinel

et al. 2011

Journal of Applied Physics

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“…Field emission I-V characteristics were measured in a custom made system, described in detail elsewhere [11]. Briefly, a diode configuration is used, in which a molybdenum rod of 3 mm diameter (area: 0.071 cm 2 ) serves as the anode.…”

Section: Methodsmentioning

confidence: 99%

“…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.…”

Section: Field Emission Studiesmentioning

confidence: 99%

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

Katar

Hernández

Labiosa

et al. 2010

Electrochimica Acta

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“…No significant changes in the field emission behaviour was reported for irradiated S doped UNCD films; this was attributed to the existence of an extensive trigonal network forming during growth. [26] …”

Section: Field Emission As a Function Of Conditioning And Post Growthmentioning

confidence: 99%

Carbon based electronic materials: applications in electron field emission

Carey

Smith

Silva

2006

J Mater Sci: Mater Electron

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The influence of the different types of bonding present in a range of carbon based materials is discussed as a precursor to describing the field emission characteristics of carbon cold cathode materials. Some of the controlling factors which govern electron emission from carbon based cathodes are discussed. It is shown that from disordered carbon films the interplay between the clustered sp 2 phase and the insulating sp 3 matrix is important. The transition from a 'back contact' to 'front surface' controlled emission mechanism is described in terms of the sp 2 content and field penetration. A possible reason for high field enhancement factors found in disordered films also is provided. It is further shown that changes to the sp 2 phase by current stressing can improve the field emission characteristics. Emission from carbon nanotubes is also discussed and the prospects for new types of nanotube -polymer composite based cathodes are also considered.2

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Synthesis, structure, and field emission properties of sulfur-doped nanocrystalline diamond

Cited by 44 publications

References 60 publications

Free standing graphene-diamond hybrid films and their electron emission properties

Free standing graphene-diamond hybrid films and their electron emission properties

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

Carbon based electronic materials: applications in electron field emission

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