Nanomeghyas

Nanomeghyas

Study of electron transport in a graphene nanoribbon device

Document Type : Original Article

Authors
ghasem ansaripour
hamid vazini hekmat
Abstract
The behavior of graphene electrons at the Dirac point in the condensed matter physics view point is of particular attention Specially this is because the graphene bandstructure has linear dispersion relation showing the so called massless particles (particles with zero effective mass), so that the energy and momentum of the electron is like a photon.
In this paper we investigate the transport properties of a one -dimensional graphene nanoribbon device with a parabolic band structure near the Dirac point. An analytical model of mobility is developed by using the conductance approach and Drude model. The conductance of graphene nanoribbon device is calculated to obtain the mobility. Comparing the calculated mobility with recent experimental data, shows close agreement and the maximum carrier mobility occurs at the Dirac point.
Keywords
Graphene nanoribbon
Mobility
Conductance
Dirac point
[1] B. Tekinerdogan, Engineering connected intelligence: A socio-technical perspective, Wageningen University, 1-40, 2017.
[2] G. Liang, N. Neophytou, D.E. Nikonov, and M. Lundstrom, "Performance projections for ballistic graphene nanoribbon field-effect transistors," IEEE Transactions on Electron Device, 54, 677- 682, 2007.
[3] R. Martel, T. Schmidt, H.R. Shea, T. Hertel, and Ph. Avouris, "Single and multi-wall carbon nanotube field-effect transistors," Applied Physics Letters, 73, 2447- 2449, 1998 .
[4] B. Gharekhanlou and S. Khorasani, "An overview of tight-binding method for two-dimensional carbon structures," Nova Science Publishers, 1-36, 2011.
[5] M.S. Lundstrom J. Guo, "Nanoscale transistors: Device physics, modeling and simulation," Springer Science Business Media, 2006.
[6] Z. Johari, M. T. Ahmadi, D C.Y. Chek, N. A. Amin, and R. Ismail, "Modelling of graphene nanoribbon fermi energy," Hindawi Publishing Corporation Journal of Nanomaterials 909347, 1-6, 2010.
[7] H. Zheng, Z. F. Wang, T. Luo, Q.W. Shi, and J. Chen, "Analytical study of electronic structure in armchair graphene nanoribbons," Physical Review B 75, 165414, 1-6, 2007.
[8] D. Berdebes, T. Low, and M. Lundstrom, "Low bias transport in graphene: An introduction lecture notes," 1-23, 2009.
[9] S. Datta, "Electronic transport in mesoscopic systems," Cambridge University Press, 2002.
[10] T. Durkop, B. M. Kim and M.S. Fuhrer, "Properties and applications of high-mobility semiconducting nanotubes," Journal Physics Condensed Matter, 16, 553-580, 2004.
[11] Y. Zhang, Y.W. Tan, H.L. Stormer and P. Kim, "Experimental observation of quantum Hall effect and Berry’s phase in graphene," Nature, 438, 201-204, 2005.

  • Receive Date 31 January 2020
  • Revise Date 23 March 0621
  • Accept Date 30 May 2020