Synthesis and Field Emission Properties of Diamond Microcrystalline-Aggregate Array

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The diamond microcrystalline-aggregate array was fabricated by microwave plasma chemical vapor deposition (MPCVD) method. The ceramic with a Ti mental layer is used as substrate. The diamond array was evaluated by Raman scattering spectroscopy, x-ray diffraction spectrum (XRD), scanning electron microscopy (SEM). The field emission properties were tested by using a diode structure in a vacuum. A phosphor-coated indium tin oxide (ITO) anode was used for observing and characterizing the field emission. It was found that the diamond microcrystalline-aggregate array exhibited better electron emission properties. The turn-on field is only 1.1V/μm and a emission current density as high as 1mA/cm2 was obtained under an applied field of 3.3V/μm. The good field emission properties of the diamond microcrystalline-aggregate array are discussed relating to microstructure and electrical conductivity.

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Periodical:

Edited by:

Yun Wu and Yijin Wu

Pages:

596-599

DOI:

10.4028/www.scientific.net/AMR.664.596

Citation:

J. H. Gao et al., "Synthesis and Field Emission Properties of Diamond Microcrystalline-Aggregate Array", Advanced Materials Research, Vol. 664, pp. 596-599, 2013

Online since:

February 2013

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$35.00

[1] R.L. Fink, Z. Li Tolt, Z. Yaniv: Surf. Coat. Technol. 108-109 (1998) P. 570.

[2] B.S. Satyanarayana, A. Hart, W.I. Milne, J. Robertson: Appl. Phys. Lett. 71 (1997) P. 1430.

[3] Jin-hai Gao, Limin Zhao, Haoshan Hao: Physcia. B Vol. 4405(2010), P. 318.

[4] W. Zhu, G.P. Konchanski, S. Jin, L. Sebles, D.C. Jacobson, M. McCormack, A.E. White: Appl. Phys. LETT. 67 (1995) P. 1157.

[5] A.N. Obraztsov, L. Yu. Pavlovsky, A.P. Voldov, J. Vac: Sci. Technol. B 17 (1999) P. 674.

[6] Yih-Trong Jan, Hui-Chen Hsieh, Chia-Fu Chen: Diamond Relat. Mater. 8 (1999) P. 772-780.

DOI: 10.1016/s0925-9635(98)00420-8

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