Enhanced Field Emission from Carbon Nanotubes Coated by Nanoparticles of Turbostratic Stacked Graphenes

Abstract:

The field emission (FE) of the carbon nanotubes (CNTs) modified by hydrocarbon ion treatment with an energy of 80 eV has been demonstrated. Compared with untreated CNTs, the turn-on field and the threshold field of the modified CNTs decreased significantly. Scanning electron microscopy and transmission electron microscopy indicate that, after hydrocarbon ion treatment, the CNTs are coated by amorphous carbon layer at 300°C of substrate temperature and nanoparticles of graphene stacks at 700°C. It is considered that both amorphous carbon and stacked graphene coating layer can decrease the effective surface work function of CNTs and thus increase FE.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 479-484
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.479
• Online since: May 2013
• Authors: Qin Tao Li, Rong Hu, Xian Rui Zhao, Zhi Gang Li, Yan Ping Liu
• Keywords: Carbon Nanotube (CN), Field Emission, Hydrocarbon Ion

References

[1] S. Fan, M. Chapline, N. Franklin, T. Tombler, A. Cassell and H. Dai: Science Vol. 283, (1999), p.512

[2] M.L. Terranova, S. Orlanducci, A. Fiori, E. Tamburri, V. Sessa and M. Rossi: Chem. Mater. Vol. 17, (2005), p.214

[3] X.C. Xiao, J.W. Elam, S. Trasobares, O. Auciello and J.A. Carlisle: Adv. Mater. Vol. 17, (2005), p.1496

[4] H. Schittenhelm, D.B. Geohegan, G.E. Jellison, A.A. Purtzky, M.J. Lance and P.F. Britt: Appl. Phys. Lett. Vol. 81, (2002), p. (2097)

[5] S. Trasobares, C.P. Ewels, J. Birrel, O. Stephan, B.Q. Wei and J.A. Carlisle: Adv. Mater. Vol. 16, (2004), p.610

[6] B.W. Smith and D.E. Luzzi: Chem. Phys. Lett. Vol. 321, (2000), p.169

[7] K. Yu, Z.Q. Zhu, Y.S. Zhang, Q. Li, W.M. Wang and L.Q. Luo: Appl. Surf. Sci. Vol. 225, (2004), p.380

[8] T. Feng, J.H. Zhang, Q. Li, X. Wang, K. Yu and S.C. Zou: Physica E Vol. 36, (2007), p.28

[9] A.G. Nasibulin, P.V. Pikhitsa, H. Jiang, D.P. Brown, A.V. Krasheninnikov and A.S. Anisimov: Nat. Nanotech. Vol. 2, (2007), p.156

[10] E.T. Thostenson, W.Z. Li, D.Z. Wang, Z.F. Ren and T.W. Chou: J. Appl. Phys. Vol. 91, (2002), p.6034

[11] A. Wadhawan, R.E. Stallcup II and J.M. Perez: Appl. Phys. Lett. Vol. 78, (2001), p.108

[12] W. Yi, T. Jeong, S.G. Yu, J. Heo, C. Lee, J. Lee, W. Kim, J.B. Yoo and J. Kim: Adv. Mater. Vol. 14, ( 2002), p.1464

[13] C.Y. Zhi, X.D. Bai and E.G. Wang: Appl. Phy. Lett. Vol. 81, (2002), p.1690

[14] S.C. Kung, K.C. Hwang and I.N. Lin: Appl. Phys. Lett. Vol. 80, (2002), p.4819

[15] C.H. Weng, K.C. Leou, H.W. Wei, Z.Y. Juang, C.H. Tung and C.H. Tsai: Appl. Phys. Lett. Vol. 85, (2004), p.4732

[16] Z.C. Ni, Q.T. Li, D.Z. Zhu and J.L. Gong: Appl. Phys. Lett. Vol. 89, (2006), p.053107

[17] F. Tuinstra and J.L. Koenig: J. Chem. Phys. Vol. 53, (1970), p.1126

[18] A.C. Ferrari and J. Robertson: Phys. Rev. B Vol. 61, (2000), p.14095

[19] A.V. Krasheninnikov, K. Nordlund, M. SirviÖ, E. Salonen and J. Keinonen: Phys. Rev. B Vol. 63, (2001), P. 245405

[20] A.V. Pomoell J, A.V. Krasheninnikov, K. Nordlund and J. Keinonen: J. Appl. Phys. Vol. 96, (2004), p.2864