Two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties
Silicene is a two-dimensional (2D) derivative of silicon (Si) arrangsd in honeycomb lattice. It is predicted to be compatible with the present fabrication technology. However, its gapless properties (neglecting the spin-orbiting effect) hinders its application as digital switching devices. Thus, a s...
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my.utm.930502021-11-07T05:54:44Z http://eprints.utm.my/id/eprint/93050/ Two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties Chuan, M. W. Wong, K. L. Hamzah, A. Rusli, S. Alias, N. E. Lim, C. S. Tan, M. L. P. TK Electrical engineering. Electronics Nuclear engineering Silicene is a two-dimensional (2D) derivative of silicon (Si) arrangsd in honeycomb lattice. It is predicted to be compatible with the present fabrication technology. However, its gapless properties (neglecting the spin-orbiting effect) hinders its application as digital switching devices. Thus, a suitable band gap engineering technique is required. In the present work, the band structure and density of states of uniformly doped silicene are obtained using the nearest neighbour tight-binding (NNTB) model. The results show that uniform substitutional doping using aluminium (Al) has successfully induced band gap in silicene. The band structures of the presented model are in good agreement with published results in terms of the valence band and conduction band. The band gap values extracted from the presented models are 0.39 eV and 0.78 eV for uniformly doped silicene with Al at the doping concentration of 12.5% and 25% respectively. The results show that the engineered band gap values are within the range for electronic switching applications. The conclusions of this study envisage that the uniformly doped silicene with Al can be further explored and applied in the future nanoelectronic devices. Techno-Press 2020 Article PeerReviewed Chuan, M. W. and Wong, K. L. and Hamzah, A. and Rusli, S. and Alias, N. E. and Lim, C. S. and Tan, M. L. P. (2020) Two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties. Advances in Nano Research, 9 (2). pp. 105-115. ISSN 2287-237X http://dx.doi.org/10.12989/anr.2020.9.2.105 DOI: 10.12989/anr.2020.9.2.105 |
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TK Electrical engineering. Electronics Nuclear engineering Chuan, M. W. Wong, K. L. Hamzah, A. Rusli, S. Alias, N. E. Lim, C. S. Tan, M. L. P. Two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties |
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Silicene is a two-dimensional (2D) derivative of silicon (Si) arrangsd in honeycomb lattice. It is predicted to be compatible with the present fabrication technology. However, its gapless properties (neglecting the spin-orbiting effect) hinders its application as digital switching devices. Thus, a suitable band gap engineering technique is required. In the present work, the band structure and density of states of uniformly doped silicene are obtained using the nearest neighbour tight-binding (NNTB) model. The results show that uniform substitutional doping using aluminium (Al) has successfully induced band gap in silicene. The band structures of the presented model are in good agreement with published results in terms of the valence band and conduction band. The band gap values extracted from the presented models are 0.39 eV and 0.78 eV for uniformly doped silicene with Al at the doping concentration of 12.5% and 25% respectively. The results show that the engineered band gap values are within the range for electronic switching applications. The conclusions of this study envisage that the uniformly doped silicene with Al can be further explored and applied in the future nanoelectronic devices. |
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Chuan, M. W. Wong, K. L. Hamzah, A. Rusli, S. Alias, N. E. Lim, C. S. Tan, M. L. P. |
author_facet |
Chuan, M. W. Wong, K. L. Hamzah, A. Rusli, S. Alias, N. E. Lim, C. S. Tan, M. L. P. |
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Chuan, M. W. |
title |
Two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties |
title_short |
Two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties |
title_full |
Two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties |
title_fullStr |
Two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties |
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Two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties |
title_sort |
two-dimensional modelling of uniformly doped silicene with aluminium and its electronic properties |
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Techno-Press |
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2020 |
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http://eprints.utm.my/id/eprint/93050/ http://dx.doi.org/10.12989/anr.2020.9.2.105 |
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