The Field Emission of Globe-Like Diamond Microcrystalline Aggregate Films

Abstract:

The globe-like diamond microcrystalline aggregates films were fabricated by microwave plasma chemical vapor deposition method. The field emission properties and emission stability of the films were tested using a diode structure in vacuum. It was found that the globe-like diamond microcrystalline aggregates films exhibited good electron emission properties and stability. The turn-on field of 0. 55 V /μm and the current density of 11mA/cm² at the electric fields of 2.73V/μm were obtained. At the successive operator circles, the turn-on field tends to stabilize at 1. 08V /μm and the current density of 6.6 mA/cm² is obtained.

• Periodical: Advanced Materials Research (Volume 279)
• Pages: 88-92
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.279.88
• Online since: July 2011
• Authors: Jin Hai Gao, Wu Qing Zhang, Zhen Li
• Keywords: Chemical Vapor Deposition (CVD), Diamond Microcrystalline Aggregate, Field Emission

References

[1] Teplier F, et al.: Fabrication of high performance low temperature poly-silicon backplanes on metal foil for flexible active-matrix organic light emission diode displays. Thin Solid Films, 515, 19(2007), pp.7428-7432.

DOI: 10.1016/j.tsf.2006.11.197

[2] Jinhai Gao, Limin Zhao, et al.: Field emission properties of the globe-like diamond microcrystalline aggregate films grown by MPCVD. Physica B: Condensed Matter, 405, 1(2010), pp.318-321.

DOI: 10.1016/j.physb.2009.08.081

[3] S. G. Wang, Qing Zhang, et al.: Electron field emission enhancement effects of nano-diamond films. Surface and Coatings Technology, 167, 2-3(2003), pp.143-147.

DOI: 10.1016/s0257-8972(02)00901-5

[4] Chung S J et al.: Stability of electron emission current in hydrogen-free diamond. J. Appl. Phys. 82, 8(1997), pp.4047-4050.

[5] Jing Lv, Yongxiang Zhao and Hailong Zhao: Influence of pretreatment conditions of Ti film on field emission properties of carbon nanotubes films. Synthetic Metals, 160, 19-20(2003), pp.2051-2054.

DOI: 10.1016/j.synthmet.2010.07.019

[6] C.L. Dong, et al.: Effect of surface treatments on the electronic properties of ultra-nanocrystalline diamond films. Diamond Relat. Mater., 17, 7-10(2008), pp.1150-1153.

DOI: 10.1016/j.diamond.2007.12.001

[7] D. Pradhan et al.: Low temperature growth of ultrananocrystalline diamond film and its field emission properties. Diamond Relat. Mater., 15, 11-12(2006), pp.2001-2005.

DOI: 10.1016/j.diamond.2006.07.026

[8] B. K. Choi, et al. : Thermionic electron emission from chemical vapor deposition diamond by nanosecond laser heating. Journal of Vacuum Science & Technology B, 27, 2(2009), pp.557-561.

DOI: 10.1116/1.3077486

[9] E. Ozturk, et al.: The dependence of the intersubband transitions in square and graded QWs on intense laser field. Solid State Communications, 132, 7(2004), pp.497-502.

DOI: 10.1016/j.ssc.2004.05.019

[10] Bin Zhao, et al: Tunable field emission properties of carbon nanotube arrays by engineering Fe catalyst. Materials Letters, 63, 29(2009), pp.2556-2559.

DOI: 10.1016/j.matlet.2009.08.061

[11] Qi Yang, et al.: Field-effect transistor based on a combination of nanometer film and undoped semiconductor . Applied Surface Science, 253, 8(2007), pp.3927-3929.

DOI: 10.1016/j.apsusc.2006.08.021