Investigation of the field emission from layered CNT/TiO2 nanotubes under the light exposure

Document Type : Full length research Paper

Authors

1 y.abdi@ut.ac.ir

2 Department of Physics, University of Tehran

Abstract

Nowadays, electron sources based on field emitters have an important role in our life. For example, utilizing the field emitters in electron microscopes, field emission displays, and solar cells are the main application of the field emission. In recent years carbon naotubes (CNTs) have been considered as a good electron emitter because of their unique electron conductivity. Also, TiO2 nanotubes as a metal oxide semiconductor with capability to grow on a conductive substrate can be a promising candidate for electron emitter. In this study, we have focused on investigating the field emission characteristics of the bare TiO2 nanotubes and CNT coated TiO2 nanotubes to achieve a high current electron emitter. In this study, we have shown that the layered nanostructures have a significantly higher electron emission comparing to the bare TiO2 nanotubes. Also, the emission current from these nanostructures changes udder the light exposure.

Keywords

References

 
[1] Y. Chen, D.T. Shaw, Field emission of different oriented carbon nanotubes, Applied Physics Letters, 76 (2000) 2469-2472.
[2] V. Zwilling, E. Darque‐Ceretti, A. Boutry‐Forveille, D. David, M.Y. Perrin, M. Aucouturier, Structure and Physicochemistry of Anodic Oxide Films on Titanium and TA6V Alloy, Surface and interface analysis, 27 (1999) 629-637.
[3] X. Xu, C. Tang, H. Zeng, T. Zhai, S. Zhang,; H. Zhao, Y. Bando, D. Golberg, Structural Transformation, Photocatalytic and Field-Emission Properties of Ridged TiO2 Nanotubes, Applied Materials & Interfaces, 3 (2011) 1352–1358.
[4] F. Diederich, Y. Rubin, Synthetic Approaches toward Molecular and Polymeric Carbon Allotropes, Angewandte Chemie International Edition, 31(1992) 1101-1123.
[5] R. Basuand, G.S. Iannacchione, High-resolution dielectric spectroscopy and electric-field dependence of carbon allotropes including multiwall and single-wall nanotubes, Applied physics letters, 92 (2008) 052906-9 .
[6] D. Gong, C.A. Grimes, Titanium oxide nanotube arrays prepared by anodic oxidation, Journal of Materials Research, 16 (2001) 3331-3334.
[7] I. Sumio, Helical microtubules of graphitic carbon, Nature, 354 (1991) 56–58.
[8] J. Wang, Carbon-Nanotube Based Electrochemical Biosensors: A Review, Electroanalysis, 17 (2005) 7-14.
[9] P. Prakash, K.M. Sundaram, M.A. Bennet, A review on carbon nanotube field effect transistors (CNTFETs) for ultra-low power applications, Renewable and Sustainable Energy Reviews, 89 (2018) 194-203.
[10] K.T. Dembele, R. Nechache, L. Nikolova, A. Vomiero, C. Santato, S. Licoccia, Rosei Effect of multi-walled carbon nanotubes on the stability of dye sensitized solar cells, Journal of Power Sources, 233 (2013) 93-97.
[11] J. Prasek, J. Drbohlavova, J. Chomoucka, J. Hubalek, O. Jasek, V. Adam, R. Kizek, Methods for carbon nanotubes synthesis:review, Journal of Materials Chemistry, 21 (2011) 15872-15884.
[12] Y. Abdi, J. Koohsorkhi, J. Derakhshandeh, S. Mohajerzadeh, H. Hoseinzadegan, M.D. Robertson, J.C. Bennett, X. Wu, H.Radamson, PECVD-grown carbon nanotubes on silicon substrates with a nickel-seeded tip-growth structure, Materials Science and Engineering C, 26 (2006)1219–1223.
[13] P. Brown, K. Takechi, P.V. Kamat, Single-Walled Carbon Nanotube Scaffolds for Dye-Sensitized Solar Cells, Journal of Physical Chemistry C 112 (2008) 4776-4782.
[14] K.M. Lee, C.W. Hu, H.W. Chen, K.C. Ho, Incorporating carbon nanotube in a low-temperature fabrication process for dye-sensitized TiO2 solar cells, Solar Energy Materials & Solar Cells, 92 (2008) 1628–1633.
[15] C.Y. Yen, Y.F. Lin, S.H. Liao, C.C. Weng, C.C. Huang, Y.H. Hsiao, C.M. Ma, M.C. Chang, H. Shao, M.C. Tsai, Preparation and properties of a carbon nanotube-based nanocomposite photoanode for dye-sensitized solar cells, Nanotechnology, 19 (2008) 375305-9.
[16] P. Yaghoobi, M. Vahdani Moghaddam, A. Nojeh, Heat trap: light-induced localized heating and thermionic electron emission from carbon nanotube arrays, Solid State Communications, 151(2011) 1105-1108.
[17] M. Monshipouri, Y. Abdi, S. Darbari, Realization of low power-laser induced thermionic emission from Ag nanoparticle decorated CNT forest: A consequence of surface plasmon resonance, Applied physics letters, 109 (2016) 203105-8.
Journal of Research on Many-body Systems
Volume 9, Issue 1
فصل بهار
May 2019
Pages 88-95

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History

  • Receive Date: 19 February 2018
  • Revise Date: 01 December 2018
  • Accept Date: 16 March 2019

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