Modelling of the Influence of a Pointed Field Emission Cathode Design from the Silicon Carbide with Graphene Film on the Electric Field Strength

Abstract:

Graphene film on silicon carbide is considered to be promising material for high-frequency vacuum nanoelectronics. However, the possibility of graphene application in this area is still poorly understood. We have carried out the simulation of the electric field distribution in interelectrode gap of the anode-cathode system pointed field emission cathode based on silicon carbide with graphene film on its surface subject to the rounding-off radius of the top, interelectrode gap, height and cathode forming half-angle of the cone opening by the finite element method. The influence of constructional parameters on the electric field strength in the test structure was analyzed. It is shown that the values of rounding-off radius of the cone point and interelectrode distance has the biggest influence on the electric field in the investigated structure. Changing of the height and cathode forming half-angle of the cone opening does not lead to a significant increase or decrease of the electric field value.

• Periodical: Applied Mechanics and Materials (Volumes 752-753)
• Pages: 163-167
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.752-753.163
• Online since: April 2015
• Authors: Alexander M. Svetlichnyi*, Oleg. A. Ageev, Evgeny Yu. Volkov, Igor L. Jityaev, Maxim V. Dem'yanenko
• Keywords: Electric Field Strength, Field Emission, Finite Element Method (FEM), Graphene, Micronanosize Field Emission Cathode, Modeling

References

[1] G.N. Fursey, V.I. Petrick and D.V. Novikov, Low-threshold field electron emission from carbon nanoclusters formed upon cold destruction of graphite, Tech. Phys. 54 (7) (2009) 1048-1051.

DOI: 10.1134/s1063784209070202

[2] R.V. Konakova, O.B. Ohrimenko, A.M. Svetlichnyi et al, Nanostructural materials 2010: Belorus-Russia-Ukraine (Nano-2010): Thesis of II international scientific conference (Kiev, 19-22 oct. 2010), (2010) 219.

[3] O.B. Ohrimenko, R.V. Konakova, A.M. Svetlichnyi et al, Evaluation of field emission properties of nanostructures based on silicon carbide and graphene, Nanosyst. 10 (2) (2012) 335-342.

[4] J.H. Gao, L. Zhang, B.L. Zhang et al, Fabrication of globe-like diamond microcrystalline aggregate films and investigation of their field emission properties, Thin Solid Films. 516 (2008) 7807-7811.

DOI: 10.1016/j.tsf.2008.03.048

[5] V. Kaushik, A.K. Shukla and V.D. Vankar, Improved electron field emission from metal grafted graphene composites, Carbon. 62 (2013) 337-345.

DOI: 10.1016/j.carbon.2013.06.016

[6] T.N. Sokolova, A.V. Konyushin, E.L. Surmenko et al, Laser technology and advanced equipment in the production of field emission cathodes from the monolithic glassy carbon, Vacuum Equipment Technol. 21 (2) (2011) 95-97.

[7] S.M. Wanga, H.W. Tiana, Q.N. Menga et al, Field emission properties of vertically aligned thin-graphite sheets/graphite-encapsulated Cu particles, Appl. Surf. Sci. 258 (2012) 6930- 6937.

DOI: 10.1016/j.apsusc.2012.03.137

[8] H.C. Chang, C.C. Li, S.F. Jen et al, All-carbon field emission device by direct synthesis of graphene and carbon nanotube, Diamond & Related Mater. 31 (2013) 42–46.

DOI: 10.1016/j.diamond.2012.10.011

[9] K.A. Bespalov, Je. A. Ilinov, E.P. Kirilenko et al, Investigation of the formation nanostructured emission environments technology for high-current radiofrequency electronics, Proceedings of the universities, Electronics, 4 (2014) 27-35.

[10] V.A. Galperin, E.P. Kitsyuk, A.A. Pavlov, et al, Research of plasma nanostructuring technology of high-performance emissive, Proceedings of the universities. Electronics, 4 (2014) 36-41.

[11] D. Levin, V. Nevolin and K. Carik, Formation of nanoscale graphene structures by focused ion beam, Nanoindustry, 1 (2011) 46-50.

[12] A. Javey, J. Guo, Q. Wang et al, Ballistic carbon nanotubes field-effect transistor, Nature, 424 (2003) 654-657.

DOI: 10.1038/nature01797

[13] X.Q. Wang, M. Wang, H.L. Ge et al, Modeling and simulation for the field emission of carbon nanotubes array, Physica E, 30 (2005) 101-106.

[14] X.Q. Wang, M. Wang, Z.H. Li, et al, Modeling and calculation of field emission enhancement factor for carbon nanotubes array, Ultramicroscopy, 102 (2005) 181-187.

DOI: 10.1016/j.ultramic.2004.08.009

[15] J. Tong, L. Li, N.J. Chu et al, Optimization for field emission from carbon nanotubes array by Fowler–Nordheim equation, Physica E, 40 (2008) 3166-3169.

DOI: 10.1016/j.physe.2008.05.006

[16] X.Q. Wang, Y.B. Xu, H.L. Ge et al, Optimization for field emission from carbon nanotubes array in hexagon, Diamond & Related Mater. 15 (2006) 1565-1569.

DOI: 10.1016/j.diamond.2005.12.039

[17] S.C. Lim, H.K. Choi, H.J. Jeong et al, A strategy for forming robust adhesion with the substrate in a carbon-nanotube field-emission array, Carbon, 44 (2006) 2809-2815.

DOI: 10.1016/j.carbon.2006.03.030

[18] S. Watcharotonea, R.S. Ruoffa and F.H. Read, Possibilities for graphene for field emission: modeling studies using the BEM, Phys. Proc. 1 (2008) 71-75.

[19] M. Rezeq, Ch. Joachim and N. Chandrasekhar, Confinement of the field electron emission to atomic sites on ultra sharp tips, Surf. Sci. 603 (2009) 697-702.

DOI: 10.1016/j.susc.2009.01.010

[20] M. Rezeq, Finite element simulation and analytical analysis for nano field emission sources that terminate with a single atom: A new perspective on nanotips, Appl. Surf. Sci. 258 (2011) 1750-1755.

DOI: 10.1016/j.apsusc.2011.12.038