The effect of periodic magnetic field on the fabrication and field emission properties of nanocrystalline diamond films

Long, Hangyu; Li, Shasha; Luo, Hao; Wang, Yijia; Wei, Qiuping; Yu, Zhaoju

doi:10.1016/j.apsusc.2015.06.151

Cited by 14 publications

(7 citation statements)

References 19 publications

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“…It was found that the electronic gap state provided by the added N is beneficial to enhance the electron field emission at the surface of ND films [ 83 ]. Many attempts/changes were conducted for improving the field emission properties, such as adjusting the grain size and boundary, the concentration of sp 2 phase, and doping type/level [ 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 ].…”

Section: Field Emission Properties Of Nd Filmmentioning

confidence: 99%

“…It can be found from the SEM images that the nucleation density was enhanced and the crystal size was diminished by increasing the angular frequency ω of PMF. The fine grain size and continuously dense film can be easily obtained at a relatively high angular frequency, which was helpful to obtain an outstanding field emission performance with a turn-on field of 2.9 V/μm at 1μA/cm 2 , and a current emission density of 32.7 μA/cm 2 at 6.5 V/μm [ 88 ].…”

Section: Field Emission Properties Of Nd Filmmentioning

confidence: 99%

“… ( a ) The SEM images of the deposited ND film with different angular frequency ω of 0 rpm ( a’ ), 10,000 rpm ( b’ ), 20,000 rpm ( c’ ), 30,000 rpm ( d’ ). Additionally, ( b ) the corresponding J - E plots [ 88 ]. …”

Section: Figurementioning

confidence: 99%

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Recent Progress of Nanodiamond Film in Controllable Fabrication and Field Emission Properties

et al. 2023

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The interest in the field electron emission cathode nanomaterials is on the rise due to the wide applications, such as electron sources, miniature X-ray devices, display materials, etc. In particular, nanodiamond (ND) film is regarded as an ideal next-generation cathode emitter in the field emission devices, due to the low or negative electron affinity, small grain size, high mechanical hardness, low work function, and high reliability. Increasing efforts are conducted on the investigation of the emission structures, manufacturing cost, and field emission properties improvement of the ND films. This review aims to summarize the recent research, highlight the new findings, and provide a roadmap for future developments in the area of ND film electron field emitter. Specially, the optimizing methods of large-scale, high-quality, and cost-effective synthesis of ND films are discussed to achieve more stable surface structure and optimal physical properties. Additionally, the mainstream strategies applied to produce high field emission performance of ND films are analyzed in detail, including regulating the grain size/boundary, hybrid phase carbon content, and doping element/type of ND films; meanwhile, the problems existing in the related research and the outlook in this area are also discussed.

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Section: Field Emission Properties Of Nd Filmmentioning

confidence: 99%

Section: Field Emission Properties Of Nd Filmmentioning

confidence: 99%

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Recent Progress of Nanodiamond Film in Controllable Fabrication and Field Emission Properties

et al. 2023

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“…In order to control the crystal orientation and grain size during growth of diamond film, researchers have suggested a number of approaches, including an application of magnetic field in the HFCVD machine. While there are researchers who have studied the influence of periodic magnetic field towards the grain growth rate [7] and crystal orientation [8], the mechanism and outcome of HFCVD with static magnetic field assisted has yet been discussed as thoroughly. Little et al [9] set the foundation by demonstrating that under low pressure high temperature (specifically at atmospheric pressure), strong static magnetic field can promote nucleation and growth of smaller diamond grains.…”

Section: Introductionmentioning

confidence: 99%

Hot Filament Chemical Vapour Deposition on Tungsten Carbide Milling Tools with Magnetic Field Assistance

Kwok¹,

Yip²,

To³

2022

Asian Society for Precision Engineering and Nanotechnology (ASPEN 2022)

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“…Diamond film has many advantages such as high hardness [1], wear resistance [2], high thermal stability [3], and etc., which is extensively used on cutting tools [4,5]. In this case, understanding the wear characteristics of coatings at high temperatures is essential for advanced manufacturing engineering [6][7][8][9]. The diamond film is inert at normal temperature, while it is oxidized at high temperature, which leads to failing and destroys the protected cutting tools [10][11] due to its chemical reactions [12].…”

Section: Introductionmentioning

confidence: 99%

Friction-Wear Behaviors of Chemical Vapor Deposited Diamond Films at High Temperatures

Dejun

Zhou

Zhang

2019

J. Superhard Mater.

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Friction-wear behaviors of chemical vapor deposited diamond films at high temperaturesA diamond film was deposited on YT14 hard alloy cutting tool using a сhemical vapor deposition. The coefficients of friction and wear behaviors of the obtained diamond films at 500, 600, and 700 °C were investigated using a high temperature tribological tester. The results show that the C of diamond film is fully released at 700 °C, generating CO and CO 2 . The (220) plane of diamond film is oxidized fully at 500 °C, while the (110) plane of diamond film is oxidized at 700 °C. The average coefficients of friction of diamond film at 500, 600 and 700 °C are 0.55, 0.49, and 0.48, respectively, the wear mechanism is primarily oxidation wear, adhesive wear and abrasive wear, accompanied with fatigue wear.

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The effect of periodic magnetic field on the fabrication and field emission properties of nanocrystalline diamond films

Cited by 14 publications

References 19 publications

Recent Progress of Nanodiamond Film in Controllable Fabrication and Field Emission Properties

Recent Progress of Nanodiamond Film in Controllable Fabrication and Field Emission Properties

Hot Filament Chemical Vapour Deposition on Tungsten Carbide Milling Tools with Magnetic Field Assistance

Friction-Wear Behaviors of Chemical Vapor Deposited Diamond Films at High Temperatures

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